The First Arrow Against the Queen of Cities: The Forgotten First Arab Siege of Constantinople (654 CE)
The First Arrow Against the Queen of Cities: The Forgotten First Arab Siege of Constantinople (654 CE)
بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ
In the annals of early Islamic history, certain events are remembered, and others are not. The two great Umayyad sieges of Constantinople—the six-year campaign of 674–678 and the climactic assault of 717–718—loom large in both Muslim and Roman memory. They are the stuff of legend: Greek fire, desperate defenses, apocalyptic expectations, and the eventual triumph of Christendom.
But before both, there was another siege. A bigger one. A more catastrophic one.
In the year 654 CE, just twenty-two years after the death of the Prophet Muhammad, the armies of the Caliphate launched their first great amphibious assault against the capital of the Roman Empire. It was the largest fleet ever assembled by the Arabs up to that time. It carried an army of tens of thousands, equipped with siege towers, stone-throwing machines, and fire-projecting engines. It was meant to end the Roman Empire forever.
It failed. Spectacularly.
A sudden storm—or, as the Armenian historian Sebeos described it, "the awesome power of the Lord"—rose up and destroyed the fleet before it could reach the walls of Constantinople. The survivors fled in panic. The land army, already at Chalcedon, withdrew in disgrace.
This siege has been virtually erased from historical memory. The Arabic sources, which recorded almost every Muslim victory, are almost silent on this defeat. The Roman sources, which celebrated their deliverance from the later sieges, barely mention it. Only a handful of contemporary witnesses—an Armenian bishop, Nestorian chroniclers in Mesopotamia, an Egyptian tribal poet, and a distant Tang Chinese historian—preserved fragments of the story.
But those fragments, when assembled, tell a coherent, compelling narrative: of ambition and hubris, of divine wrath and human folly, of the limits of Islamic expansion and the enduring power of Constantinople.
This post will reconstruct that narrative.
We will follow the campaign step by step: the planning, the gathering of the fleet, the overland march, the catastrophic storm, the panicked retreat, and the brutal aftermath. Along the way, we will give voice to the witnesses:
Sebeos, the Armenian bishop who provides the most detailed account of the siege itself
Abū al-‘Iyāl al-Hudhalī, the Egyptian poet who was there, captured by the Romans, left for dead, writing desperate letters to Muʿāwiya, ʿAmr ibn al-ʿĀṣ, and ʿAbd Allāh ibn Saʿd
The Khuzistan Chronicle, the East Syrian chronicler who notes that God "has not yet given them dominion" over Constantinople—a statement that only makes sense if they had tried
Khalīfa ibn Khayyāṭ, the early Islamic historian who preserves a cryptic reference to "Muʿāwiya's expedition to the straits of Constantinople"
The Maronite Chronicle, which records the aftermath of the Yarmūk generation and the growing awareness that Constantinople was different
The Old Book of Tang, which, from the other end of the world, recorded the tribute that flowed from Muʿāwiya's humiliation
The siege of 654 is not a footnote. It is the hinge on which the early Caliphate turned. It shattered the aura of Muslim invincibility. It contributed to the unrest that led to the assassination of Caliph ʿUthmān. It forced Muʿāwiya to delay his ambitions for a generation. And it proved, once and for all, that Constantinople was not like any other city.
Let us reconstruct the forgotten cataclysm.
Section I: The Peace Treaty of 649 CE — The Prelude to Catastrophe
By the year 649 CE, the Islamic Caliphate had transformed the map of the Near East beyond recognition. The Sasanian Empire, which had stood for over four centuries, was in its death throes. Its last king, Yazdgird III, was a fugitive, hunted across the Iranian plateau. The Roman Empire—once the other superpower of the ancient world—had been stripped of its richest provinces: Syria, Palestine, and Egypt had all fallen to the armies of Islam.
The man who ruled this new empire was Caliph ʿUthmān ibn ʿAffān (r. 644–656 CE). He had been in power for four years. Across the Bosporus, the Roman emperor Constans II (r. 641–668 CE) had been on the throne for nine years—but his reign had been one of constant retreat.
From the Armenian highlands, the bishop Sebeos watched these events unfold. His account is the most detailed contemporary witness to the diplomatic dance that preceded the first great Arab assault on Constantinople.
Part 1: The Failed Naval Attack — Muʿāwiya's First Probe
Before the treaty, there was a battle. Sebeos records:
"Then the [general] in the territory of Palestine ordered many fleets to be prepared. He boarded a ship and undertook an attack on Constantinople. The naval battle was not successful for him, because the host of their army opposed him with ships and destroyed them on the high seas. They repelled many by fire, and drove off many in flight."
This "general in the territory of Palestine" is Muʿāwiya ibn Abī Sufyān, the governor of Syria and the mastermind of the Caliphate's naval strategy. He had already launched successful raids against Cyprus (649 CE). Now he aimed for the capital itself.
The attack failed. The Roman navy, though depleted, still had fighting power. They used Greek fire—the legendary incendiary weapon—to repel the Arab fleet. The Muslims were driven off.
Sebeos' account is the only record of this first, failed naval attack. The Arabic sources, which celebrate Muʿāwiya's later naval victories, are silent on this defeat.
Part 2: The Tribute — Constans Buys Time
The failed attack terrified the young emperor.
"However, king Constans was terrified, and he reckoned it better to give tribute and make peace through ambassadors, and bide his time that perchance through God's propitiation he might look on the earth and have mercy on them."
Constans was young—only 19 years old in 649 CE. He had inherited an empire in ruins. The loss of Egypt in 642 CE had deprived Constantinople of its primary grain supply. The army was exhausted. The navy was overstretched.
He chose survival over pride.
"He began to parley for peace through ambassadors, and the Ismaelites encouraged the Greeks to complete the terms of the treaty. But the Greek king Constans, because he was young, did not have the authority to carry this out without the agreement of the army."
The young emperor could not act alone. He needed the consent of the military.
"He wrote to Procopius that he should go with it to Damascus to meet Muʿāwiya, prince of the Ismaelite army, and conclude the terms of the treaty in accordance with the army's wishes. So when Procopius saw the royal command and had heard the opinion of the army, he went with them to Damascus, to Muʿāwiya the prince of the Ismaelite army. He indicated the amount of tribute and discussed the border. He received the treaty and departed."
The treaty was signed in 649 CE. Its terms are not fully recorded, but other sources fill in the gaps.
Part 3: The Frankish Witness — Fredegar's Chronicle
The Frankish Chronicle of Fredegar, written in Gaul in the 660s, preserves a western perspective on the Roman collapse:
"In that year the Emperor Constantine died. His son Constans, at a tender age, was raised to the empire by the counsel of the senate. In his time the empire was most grievously laid waste by the Saracens. Jerusalem was captured by the Saracens and other cities were overthrown. Upper and Lower Egypt were overrun by the Saracens, Alexandria was captured and plundered."
Fredegar then lists the only territories that remained under Roman control:
"Only Constantinople with the province of Thrace and a few islands, and also the Roman province [Italy], remained under the authority of the empire, for almost the entire empire had been severely worn down by the Saracens."
The picture is stark. The Roman Empire had been reduced to Constantinople, a few islands, and Italy.
But Fredegar then records the tribute:
"And even in the end, the Emperor Constans, constrained and compelled, became a tributary of the Saracens, so that at least Constantinople with a few provinces and islands might be preserved under his authority. For about three years and reportedly even longer, Constans paid the Saracens a thousand gold solidi from the treasury for each and every day."
A thousand gold solidi a day equals 365,000 solidi per year. This was an enormous sum—enough to pay 30,000 soldiers for a year. It was a humiliation, but it bought time.
"Finally, having regained his strength and recovered the empire for a while, Constans refused to pay the tribute to the Saracens any longer."
Fredegar does not say when Constans stopped paying. But the implication is clear: when the Arabs lost their nerve, the Romans regained theirs.
Part 4: Theophanes' Account — The Two-Year Truce and the Hostage
The Roman chronicler Theophanes the Confessor (c. 810 CE) preserves a more detailed account of the treaty, drawing on lost sources.
For AM 6142 (649/650 CE), he records:
"In this year the commander (Busr ibn Abī Arṭāṭ) invaded Isauria with his Arabs. He slew and captured many men and returned with 5,000 prisoners."
Busr ibn Abī Arṭāṭ was one of Muʿāwiya's most loyal and brutal generals. His raid on Isauria (a mountainous region in southern Anatolia) was a reminder that the Arabs could strike at will.
Then Theophanes records the treaty:
"The emperor Constans sent a certain Prokopios as ambassador to Mauias (Muʿāwiya) to ask for peace, which was concluded for two years."
The treaty was not open-ended. It had a fixed duration: two years.
As a guarantee of good faith, Muʿāwiya demanded a hostage:
"Mauias was given Gregory, the son of Theodore, as a hostage at Damascus."
This Gregory was the nephew of Heraclius—a member of the imperial family. His presence in Damascus was a symbol of Roman submission.
Part 5: The Death of Gregory — The Treaty's Expiration
Theophanes records for AM 6144 (651/652 CE):
"In this year Gregory, the nephew of Herakleios, died at Helioupolis (Baalbek). His body was embalmed and brought to Constantinople."
The hostage died while still in Arab custody. The note is brief, but its significance is immense. Gregory was the guarantor of the treaty. His death removed the most important Roman hostage.
Theophanes also records an omen:
"In the same year dust fell from the sky and great fear came upon men."
Whether this was a volcanic eruption, a dust storm, or a literary trope, it set the stage for the cataclysm to come.
Part 6: The Death of Yazdgird III — The End of Persia
In 651 CE, the last Sasanian king, Yazdgird III, was killed at Merv. The Persian Empire, which had stood for over four centuries, was no more.
Sebeos records the Caliph's reaction:
"Now when the king of Ismael [i.e., Caliph ʿUthmān] saw the success of this victory and that the Persian kingdom had been destroyed, after three years of the peace treaty had fully passed he no longer wished to make peace with the king of the Greeks."
The "three years" refer to the treaty of 649-650 CE. By 652-653 CE, the truce had expired. The Persians were gone. The Romans were alone.
"But he commanded his troops to conduct war by sea and land in order to efface from the earth that kingdom as well, in the 12th year of the reign of Constans."
Constans' 12th year began on 5 November 652 CE and ended on 4 November 653 CE. This is the year the preparations for the great assault began.
Sebeos adds a second chronological note:
"In the 11th year of Constans the treaty between Constans and Muʿāwiya, prince of Ismael, was broken."
Constans' 11th year ran from 5 November 651 CE to 4 November 652 CE. This is the year the treaty formally expired.
The treaty was broken not by a declaration of war, but by the simple passage of time. The Arabs had waited the required two years (plus the three years of the treaty's extension). Now, with Persia destroyed, they turned their full attention to Constantinople.
Part 7: The Regnal Years of Constans II: A Crucial Chronological Framework
Emperor Constans II was proclaimed Augustus on 5 November 641 CE. His regnal years are essential for understanding Sebeos' chronology.
| Regnal Year | Start Date | End Date | Events |
|---|---|---|---|
| 1st | 5 Nov 641 | 4 Nov 642 | Accession |
| 2nd | 5 Nov 642 | 4 Nov 643 | — |
| 3rd | 5 Nov 643 | 4 Nov 644 | — |
| 4th | 5 Nov 644 | 4 Nov 645 | — |
| 5th | 5 Nov 645 | 4 Nov 646 | — |
| 6th | 5 Nov 646 | 4 Nov 647 | — |
| 7th | 5 Nov 647 | 4 Nov 648 | — |
| 8th | 5 Nov 648 | 4 Nov 649 | First Arab naval attack |
| 9th | 5 Nov 649 | 4 Nov 650 | Treaty concluded |
| 10th | 5 Nov 650 | 4 Nov 651 | Tribute payments begin |
| 11th | 5 Nov 651 | 4 Nov 652 | Treaty expires; Gregory dies |
| 12th | 5 Nov 652 | 4 Nov 653 | ʿUthmān orders assault preparations |
| 13th | 5 Nov 653 | 4 Nov 654 | Great assault on Constantinople |
Fredegar records that Constans paid the tribute for "three years and reportedly even longer."
If the payments began in 650/651 and continued for "three years," they would have ended in 653/654—precisely when the great assault was being prepared.
Part 8: The Strategic Logic: Why the Arabs Attacked When They Did
The treaty of 649-650 CE was a tactical pause, not a permanent peace. Both sides knew that war would resume.
For the Arabs, the delay served several purposes:
| Purpose | Achievement |
|---|---|
| Destroy Persia | Yazdgird III killed in 651 CE; Sasanian resistance ends |
| Build a fleet | Ships constructed in Alexandria and Syrian ports |
| Secure islands | Cyprus (649), Rhodes (652-653) captured |
| Test Roman defenses | Busr's raid into Isauria (649/650) |
| Wait out the treaty | Two-year truce + the "three years" of tribute |
For the Romans, the delay was a desperate gamble:
| Gamble | Outcome |
|---|---|
| Rebuild the army | Partially successful |
| Rebuild the navy | Less successful |
| Regain lost territories | Failed |
| Wait for Arab internal conflict | Did not materialize (yet) |
| Hope for divine intervention | Eventually succeeded (in 654) |
The treaty bought Constans three years. He used that time to strengthen Constantinople's defenses. But when the Arabs came in 654 CE, they came with a fleet larger than any ever assembled and an army that had never lost a major battle.
Section II: The Operations Leading to the Invasion — The Conquest of Cyprus, Rhodes, Persia and the Islands (649–653 CE)
Between the signing of the treaty of 649/650 CE and the great assault on Constantinople in 654 CE, the Caliphate executed a methodical campaign to secure the sea lanes and island bases necessary for an amphibious assault on the Roman capital. The strategy was clear and relentless: eliminate the Persian threat once and for all, secure the island stepping stones across the eastern Mediterranean, and build a fleet capable of transporting an army to the walls of Constantinople.
The Arabs did not wait for the treaty to expire before continuing their military operations. While Constans paid tribute and bought time, Muʿāwiya's forces methodically eliminated every obstacle to a direct assault on the Roman capital.
Part 1: The Conquest of Cyprus (649 CE) — The First Step
Theophanes' Account (AM 6140, 647/648 CE)
Theophanes records the invasion of Cyprus in the 7th year of Constans (647/648 CE), though other sources date it more precisely to 649 CE:
"In this year Mauias (Muʿāwiya) invaded Cyprus by sea. He had 1,700 ships, and took Constantia and the whole island, which he laid waste. On hearing, however, that the cubicularius Kakorizos was moving against him with a great Roman force, he sailed away to Arados and, after putting in his fleet, attempted to capture with the help of various engines the little town called Kastellos on that island. Meeting with no success, he sent to the inhabitants a certain bishop called Thomarichos to frighten them into abandoning the town, submitting to terms, and leaving the island. When the bishop had come in to meet them, they held him inside and did not yield to Mauias. The siege of Arados having thus proved fruitless, he returned to Damascus since winter had set in."
The figure of 1,700 ships is certainly exaggerated—a common trope to signify an overwhelming force. But the scale of the expedition is undeniable. The Arabs were projecting naval power on a scale never before attempted.
The Zuqnin Chronicle records the event in its terse, annalistic style:
"The year nine hundred and sixty: Mu'awiya invaded Cyprus. In the same year, Arvad was captured."
The capture of Arvad (Arados)—a small island off the coast of Syria—was strategically significant. It provided a naval base close to the Roman frontier.
The Dating Problem: Reconciling Theophanes and Zuqnin
| Source | Date (CE) | Notes |
|---|---|---|
| Theophanes | 647/648 (AM 6140) | May be off by a year or two |
| Zuqnin Chronicle | 648/649 (AG 960) | More precise |
| Scholarly consensus | 649 | Confirmed by Soloi inscriptions |
Two inscriptions discovered at Soloi in Cyprus prove that the first invasion took place in 649 and the second the following year (650). The archaeological evidence is definitive.
The 649 expedition was not merely a raid on Cyprus. It was a probe—a test of Roman naval defenses. The Muslims suffered a naval defeat (Sebeos records that "the naval battle was not successful for him"), which cut short the original scope of Mu'awiya's strategy. But they learned from the failure. They would return with a larger fleet.
Part 2: The Second Wave — Aradus and Cyprus Fall Completely (650 CE)
Theophanes (AM 6141, 648/649 CE — actually 650 CE)
"In this year Mauias set out against Arados with a great armament and took it by capitulation on condition that its inhabitants would dwell wherever they wished. He burnt the town, destroyed its walls, and caused the island to be uninhabited to this day."
The fate of Arados was total destruction. The population was expelled, the walls razed, the island left empty. This was not conquest—it was annihilation. The message to other island communities was clear: surrender or be destroyed.
Theophanes does not record the second attack on Cyprus, but other sources do.
O'Sullivan summarizes:
"Recovery from this setback was quick: it is reported for the following year, 650, that separate expeditions commanded by Mu'awiya and Abū 'l-A'war conquered Aradus and Cyprus respectively. The population of Aradus was expelled; Cyprus suffered a second devastation, and its surviving inhabitants submitted, agreeing to pay a moderate tribute, and to refrain from helping the Empire."
By the end of 650 CE, the Muslims controlled both Cyprus and Arados. The eastern Mediterranean was no longer a Roman lake.
Part 3: The Persian Collapse — No Delay Could Be Allowed (650–652 CE)
As the Arabs were securing the islands, they were also finishing off the Persian Empire. Khalīfa ibn Khayyāṭ's chronicle records the relentless pace of conquest in these years.
The Campaigns of 28 AH (648/649 CE)
| Event | Details |
|---|---|
| Azerbaijan | al-Walīd ibn ʿUqbah leads campaign |
| Cyprus | Muʿāwiya invades with his wife Fākhitah and ʿUbādah ibn al-Ṣāmit |
| Africa | ʿAbd Allāh ibn al-Zubayr returns to ʿUthmān with news of the conquest |
The mention of Muʿāwiya's wife Fākhitah accompanying him on the Cyprus campaign is a rare human detail. It also confirms that the campaign was not a quick raid—it was a settlement operation. The death of Umm Ḥarām (the wife of ʿUbādah) on Cyprus, where her grave became a pilgrimage site, is recorded in Islamic tradition.
The Campaigns of 29 AH (649/650 CE)
| Event | Details |
|---|---|
| Governorship of Basra and Persia | ʿUthmān replaces Abū Mūsā al-Ashʿarī and ʿUthmān ibn Abī al-ʿĀṣ with ʿAbd Allāh ibn ʿĀmir (aged 25) |
| Isfahan | Ibn ʿĀmir marches; inhabitants sue for peace on same terms as Persia |
| Istakhr | Ibn ʿĀmir captures the Sasanian heartland by force; heavy fighting; floods the city with blood |
| Military consolidation | Victory in the east accelerates |
The appointment of the young ʿAbd Allāh ibn ʿĀmir (only 25 years old) signals ʿUthmān's determination to place loyal, aggressive commanders in key positions. The conquest of Istakhr—the Sasanian heartland—was brutal. Ibn ʿĀmir swore to kill until blood flowed from the city gate. When it did not flow, he poured water over the blood to make it run.
The Campaigns of 30 AH (650/651 CE)
| Event | Details |
|---|---|
| Fars (Jūr, Kārīyān, Fīshajān) | Ibn ʿĀmir captures cities, seizes fire temple treasures |
| Sistan (Zāliq, Shurāwadh, Nāsharūdh) | al-Rabīʿ ibn Ziyād al-Ḥārithī captures key cities, lays siege to Zaranj |
| Khurasan | al-Aḥnaf ibn Qays defeats Herāt, moves toward Marw |
| Tabaristan | Saʿīd ibn al-ʿĀṣ campaigns; massacres population (spares a single man) |
| Yazdgird III flees | The last Sasanian king is hunted across the plateau |
Khalīfa's notice on the flight of Yazdgird III is crucial:
"When Ibn ʿĀmir conquered the land of Fars in the year 30, Yazdgird, son of Kisrā, fled. Ibn ʿĀmir and Mujāshiʿ ibn Masʿūd al-Sulamī pursued him."
The Persian Empire was finished. The Arabs could now turn their full attention to Constantinople.
Part 4: The Island Campaigns — Rhodes, Cos, and Crete (652–653 CE)
With Cyprus secured and Persia destroyed, Muʿāwiya turned to the next ring of islands guarding the Aegean.
The Sources
| Source | Date | Event |
|---|---|---|
| Michael the Syrian | AG 965 (653/654) | Muʿāwiya sends fleet to Rhodes |
| Theophanes | AM 6144 (651/652) | Gregory dies at Heliopolis |
| al-Balādhurī | 32-33 AH (652-654) | Muslims occupy Rhodes |
O'Sullivan notes:
"It is reported that in 653 a fleet commanded by Abū 'l-A'war devastated the islands guarding the Aegean—Cos, Crete, and Rhodes. Moreover, it seems that the last was occupied: with Cyprus and Rhodes now under Muslim control, the way would have been open for an attack on Constantinople."
The occupation of Rhodes was particularly significant. The island had been a major Roman naval base. Its loss meant that the Aegean was no longer a Roman lake.
The Zuqnin Chronicle records:
"The year nine hundred and sixty-three (651-652): A battle between the Arabs and Romans took place at Tripolis."
This battle is the Tripoli revolt—a major uprising of Roman prisoners who killed the Muslim garrison and escaped. But the revolt did not stop the Muslim fleet from sailing. It only delayed it.
Part 5: The Chronological Synthesis — 649 to 653
| Year (CE) | Event | Source | Strategic Significance |
|---|---|---|---|
| 649 | Muʿāwiya invades Cyprus (1st attack) | Theophanes, Zuqnin, Sebeos | Probes Roman naval defenses; fails to advance to Constantinople |
| 649/650 | Muʿāwiya attacks Arados; fails | Theophanes | Roman resistance still effective |
| 650 | Arados captured; Cyprus second attack; population expelled | Theophanes, Agapius, Michael the Syrian | Island bases secured |
| 650/651 | Treaty signed; tribute payments begin; Gregory hostage | Sebeos, Theophanes, Fredegar | Constans buys time |
| 650-652 | Ibn ʿĀmir conquers Fars, Sistan, Khurasan; Yazdgird III flees | Khalīfa | Persia destroyed |
| 651 | Gregory dies at Heliopolis; treaty expires | Theophanes, Sebeos | Hostage lost; truce ends |
| 652 | ʿUthmān orders full-scale assault (12th year of Constans) | Sebeos | Decision for war |
| 652-653 | Rhodes, Cos, Crete occupied | Michael the Syrian, al-Balādhurī | Aegean islands fall |
| 653 | Muʿāwiya marches to Chalcedon | Sebeos | Land army in position |
| 654 | Great assault on Constantinople | Sebeos | Catastrophe |
Part 6: The Logic of Conquest: No Mistake, No Delay
The chronology demonstrates a deliberate, multi-year strategy:
| Phase | Years | Objective | Achievement |
|---|---|---|---|
| 1. Naval Probing | 649 | Test Roman defenses | Limited success; defeat at sea |
| 2. Island Securing | 649-650 | Capture Cyprus, Arados | ✅ Achieved |
| 3. Persian Elimination | 650-652 | Destroy Sasanian Empire | ✅ Achieved |
| 4. Aegean Encirclement | 652-653 | Capture Rhodes, Cos, Crete | ✅ Achieved |
| 5. Final Assault | 653-654 | Attack Constantinople | ❌ Failed |
The Arabs did everything right—except for the storm.
O'Sullivan writes:
"The campaigns against Cyprus and Aradus had already shown that the Muslims intended to attack the Empire by sea and were capable of doing so. The fall of those islands in 650, and the truce sought immediately afterwards, indicate that Byzantium had now lost naval supremacy, its precious counterweight against Muslim land power. Two years later, the balance of power tipped even further against the Empire. The stubborn resistance of Persia suddenly collapsed in mid-652... By now, the Muslim navy dominated the eastern Mediterranean: on sea, as on land, the Empire dared not risk open battle."
The treaty of 649/650 did not pause the Islamic conquests. It redirected them. While Constans paid tribute and fortified Constantinople, the Arabs eliminated Persia and seized the islands, but all it would take would be 1 Armenian Prince's defection to set the region ablaze.
Section III: The True Causus Belli — Armenia's Defection, Constans' Invasion, and the Road to War (651–653 CE)
By the end of 651 CE, the world had changed. The Sasanian Empire was dead. Its last king, Yazdgird III, had been killed at Merv. The Caliphate now bordered Roman Armenia directly. There was no longer a Persian buffer. The two great empires of late antiquity—Rome and Persia—were reduced to one. And that one, Rome, was isolated, exhausted, and vulnerable.
Armenia, the mountainous frontier region that had been fought over by Rome and Persia for centuries, now faced an impossible choice. It could resist the Caliphate alone, it could submit to Constantinople, or it could make its own deal.
It chose the third option.
Theodore Rshtuni, the leading Armenian prince, made a calculated decision: surrender to the Caliphate on favorable terms. The treaty he negotiated with Muʿāwiya was remarkably generous—and strategically devastating for Rome.
Part 1: The Defection — Armenia Switches Sides (651 CE)
Sebeos records the defection with a mixture of grief and anger:
"In the same year the Armenians rebelled, withdrawing from the Roman empire, and entering the service of the Ishmaelite king. T'eodoros, lord of Rshtunik' and all the princes of Armenia made an oath until death, and an agreement [lasting] until the grave to break the divine harmony [between Armenia and Rome]."
The language is striking. This was not a temporary accommodation. It was a permanent break—"an oath until death, an agreement until the grave."
Muʿāwiya's offer was brilliantly crafted to appeal to Armenian interests while serving Arab strategy:
"The Ishmaelite prince spoke with them as follows: 'Let this be an oath of peace between myself and you [lasting] as many years as you wish. I shall not take tribute from you for three years after which, by oath, you may pay what you wish. You may keep 15,000 cavalry in your land. Provide sustenance from your land and I shall include it in the royal tax. I shall not demand that the [Armenian] cavalry be sent to Syria though let it be ready to go and fight wherever else I order it. I shall send no emirs to [your] fortresses, nor even a single Arab officer or cavalryman. Let no enemy enter Armenia, but should the Romans come against you, I shall dispatch as large an auxiliary force as you want. And I swear by God the Great that I shall not break this vow.'"
The terms were astonishingly favorable to Armenia:
| Term | Significance |
|---|---|
| No tribute for three years | Immediate economic relief |
| Pay what you wish thereafter | Not a fixed tax, but a negotiated amount |
| Keep 15,000 cavalry | Armenia maintains its own defense force |
| No Arab garrisons | No foreign troops on Armenian soil |
| No emirs in fortresses | Local control preserved |
| No Arab officers | Military autonomy |
| Arab protection against Rome | The Caliphate becomes Armenia's defender |
| Oath by "God the Great" | Religious sanction for the agreement |
Sebeos' bitter comment reveals his perspective:
"Thus did the satellite of the anti-Christ pull [the Armenians] away from the Romans."
Constans II did not take the defection lightly. He wrote letters, sent embassies, and issued summonses. None of it worked.
"For although the emperor wrote them many requests and entreaties and summoned them, they did not want to listen to him. Then [the emperor] said: 'I shall come to the city of Karin (Erzurum/Theodosiopolis) and you should come to me. For I want to give you stipends in aid and plan together with you what we should do.' Despite this [the Armenians] did not want to heed him."
The Armenians had already made their choice. They would not return.
Part 2: The Roman Army's Grievance — The Disaster at Mardots'ek'
The Roman army was furious at the Armenians. They blamed Theodore Rshtuni for a military disaster that had cost them men and equipment.
"All the Roman troops complained and grumbled about the lord of Rshtunik' and about the Armenians before their emperor about the blows [inflicted] at Mardots'ek' (near mod. Bingol, Turkey), They said: '[The Armenians] have allied with the Ishmaelites. They made us trust them, encouraged the troops to go raiding to Atrpatakan, then had [the Arabs] attack us unexpectedly and defeat us. We left everything there. Now let us go to Armenia and get our things.'"
The Roman army's demand was simple: "Let us go to Armenia and get our things." They wanted revenge.
Constans, facing a mutinous army and the loss of his eastern frontier, agreed.
Part 3: Constans' Invasion of Armenia (Late 652 – Early 653 CE)
Sebeos provides two crucial chronological markers:
"Now emperor Constans said: 'That land belongs to me, and I shall go there. Should you come against me, God will be the judge of what is just.' And he went to the city of Karin in the twelfth year of his reign and in the twentieth year of the lordship of the Ishmaelites."
| Calendar | Year | CE Equivalent |
|---|---|---|
| Constans' 12th regnal year | Began 5 November 652 | Ended 4 November 653 |
| 20th year of Ishmaelite lordship | Dating from 632 CE (Muhammad's death) | 651-652 CE |
The campaign thus took place in late 652 to early 653 CE—immediately after the death of Yazdgird III and the final collapse of Persia.
"Then emperor Constans agreed to do the will of the troops. He took 100,000 of his troops and went to Armenia."
The figure is likely exaggerated (the Roman army could not field such a force at this point), but it indicates a major expedition—the largest Roman military operation in the East since Heraclius.
As Constans approached Armenia, Arab envoys met him at Derchan (mod. Tercan, Turkey):
"Ishmaelites came before him and gave him a letter from their prince which said: 'Armenia is mine, so do not go there. But should you go, I will deal with you in such a way that you will be unable to flee.'"
Muʿāwiya's message was blunt: Armenia is now Arab territory. Stay out.
"Now emperor Constans said: 'That land belongs to me, and I shall go there. Should you come against me, God will be the judge of what is just.'"
Constans claimed Roman sovereignty over Armenia. The dispute was now irreconcilable. War was inevitable.
Part 4: The Winter of 652-653 — Constans at Karin (Erzurum/Theodosiopolis)
"And he went to the city of Karin in the twelfth year of his reign and in the twentieth year of the lordship of the Ishmaelites. The emperor Constans spent several days in the city of Karin/Erzurum."
Karin (also known as Theodosiopolis) was a major Roman fortress city in Western Armenia. It was the base of operations for the campaign.
The defection of Theodore Rshtuni had split Armenia. Not all princes followed him.
"The princes and troops from so-called Fourth Armenia came before him, as did all the troops and princes from that area who had separated from [the followers of] Rshtunik'. [Among them] were the Sperats'ik', the Bagratid princes, the Managhayk', the Daranaghayk', those from the district of Ekegheats', all the troops from those places, and the Karnats'ik', Tayets'ik' and Basenats'ik'. Also coming into [Constans'] presence there were the princes of Vanand with their troops, the Shirakats'ik', Xorxorhuni, men from the House of Dimak'sen; Mushegh Mamikonean with his people, certain other princes, troops from the Ayrarat area, the Arhawegheank', Arhaneank' Varazhnunik', Gnt'unik', Spandunik' and others. Kat'oghikos Nerses had come from Tayk' and visited [the emperor]."
The list is extraordinary—a roll call of Armenian princely houses. Constans had the support of a majority of the Armenian nobility. Theodore Rshtuni held the southeastern regions, but the north and west remained loyal to Rome.
"All the princes told the emperor about the plan and desire of rebellion of the lord of Rshtunik' and about the quick traffic of Ishmaelite emissaries going to see him."
The princes denounced Theodore. They revealed his secret communications with Muʿāwiya. The emperor now had proof of the conspiracy.
"Then the emperor and all of his troops anathematized the lord of Rshtunik', removed him from the dignity of authority and dispatched another man in his place accompanied by forty men."
The official condemnation was both ecclesiastical ("anathematized") and political ("removed from dignity"). Constans appointed a new ruler for Armenia—but the appointment was symbolic. The forty men sent to enforce it would never reach their destination.
"When they reached [T'eodoros] he had them seized and bound, sending some to the fortress of Baghesh and others to the islands in [Lake] Bznunik' [Lake Van]. Then he himself went to the island of Aght'amar commanding the troops of those areas to go and secure themselves in their own districts."
Theodore captured the emperor's envoys and imprisoned them. He then established his base on Aght'amar, the island fortress in Lake Van. From there, he coordinated resistance.
"United with him were the Iberians/Georgians, Aghbanians/Aghuanians and Siwnets'ik' who, in accordance with his order, went to their own lands and fortified themselves there."
Theodore had formed a coalition of anti-Roman forces: Iberia (Georgia), Aghbania (Caucasian Albania), and Siwnik'—the entire eastern Caucasus.
"Now T'eodoros, lord of Vahewunik', seized Arp'a fortress. His son, Grigor, was the son-in-law of the lord of Rshtunik'. Varaz Nerseh Dashtkari secured himself out in the open and seized the treasury, since all the treasures of the land, the Church, the princes, and merchants were there."
Theodore's allies seized key fortresses and—most critically—captured the treasury. The wealth of Armenia now belonged to the rebels.
Part 5: The Emperor's Rage and the Plea for Mercy
"Now as soon as emperor Constans heard about this, he wanted to loot the multitude of the troops and to go and winter in Armenia, in order to destroy the country."
Constans was furious. He wanted to pillage the army (punish the soldiers who had failed him) and winter in Armenia—meaning, to devastate the land systematically.
"But then the kat'oghikos Mushegh and all the princes prostrated themselves and with great and tearful entreaties asked for clemency so that [Constans] not become totally enraged because of their offenses and destroy the country."
The Armenian Catholicos (the highest church official) and the loyalist princes begged for mercy. They did not want their homeland destroyed because of Theodore's rebellion.
"The emperor heeded their requests and released the multitude of troops. Then he himself went to Ayrarat with 20,000 troops and to Dwin where he resided in the home of the kat'oghikos."
Constans pulled back from total destruction. He reduced his force to 20,000 and moved to Dvin, the Armenian capital. He stayed in the Catholicos' residence—a gesture of respect for the loyalist church.
"The emperor made Mushegh lord of the Mamikoneans, prince of the Armenian cavalry and dispatched him with 3,000 men to the area of the sep'hakan gund."
Constans rewarded Mushegh Mamikonean, a loyalist prince, with high office. The Mamikoneans were the traditional leaders of the Armenian military
"Likewise, he sent some of his troops to Iberia, Aghbania, and Siwnik' to destroy their alliance. Other troops invested the area around the emperor, in the mountains and plains. While for some time they did not want to submit, later on they did go into [imperial] service. However, [those] in Aghbania, Siwnik', and the sep'hakan gund [area] did not submit. [Imperial troops] looted their country, taking whatever they found, and then returning to the king."
Constans' efforts to reimpose Roman authority were only partially successful. Iberia and some parts of Armenia returned to the fold. But Aghbania, Siwnik', and the sep'hakan gund (the "order of the knights"—the military elite) refused to submit. Roman troops looted what they could—but they could not pacify the region.
Part 6: The Religious Dimension — Constans and the Chalcedonian Schism
Sebeos inserts a lengthy digression on Kat'oghikos Nerses, a Chalcedonian sympathizer who used Constans' presence to impose communion with Rome.
"He was originally from the village of Ishxan in Tayk'. From childhood he was raised on Roman land, had learned the language of the Romans, and circulated about the land as a member of the military. He had accepted the Council of Chalcedon and the Tome of Leo."
Nerses was a Chalcedonian—a supporter of the Christological formula that the Armenian Church rejected. He was a Roman agent in ecclesiastical garb.
"He did not reveal his plans of impiety to anyone until he reached [the office of] the episcopacy of the land. Subsequently he was called to the kat'oghikosal throne... he planned to make the Armenians accept the Council of Chalcedon, but did not dare to do anything about it until emperor Constans came and stayed at the home of the kat'oghikos and on Sunday preached the Council of Chalcedon in the church of saint Gregory. The mass was offered in Greek by a Roman priest, and the emperor, the kat'oghikos, and all the bishops took communion—those who wanted to and those who did not."
Constans used his presence to force communion on the Armenian bishops. The mass was in Greek—a foreign language to most Armenians. But refusal meant death.
One bishop refused:
"A certain bishop silenced and countered the emperor in his presence... when mass was offered and all the bishops communed, the bishop whom I mentioned earlier, did not commune. Rather he descended from the bema and was hidden in the crowd."
His defiance was brave—and nearly cost him his life. After a tense interrogation, the emperor relented and blessed him.
But the damage was done. Constans had compromised the Armenian Church. He had made enemies where he needed allies.
Part 7: The Retreat — Constans Leaves Armenia (Easter 653 CE)
"The emperor hastened to Constantinople with great urgency, to reach it quickly. He departed in haste."
Constans rushed back to the capital. Why?
| Possible Reason | Explanation |
|---|---|
| News of Arab preparations | He may have learned of the great fleet being assembled |
| Mutiny threat | The army was unhappy; he needed to be in Constantinople |
| Political crisis | The forced communion had alienated the Armenian clergy |
| Strategic necessity | He needed to organize the defense of the capital |
"He made a certain Morianos the prince of Armenia [and gave him] an Armenian force which was from the area."
Constans appointed a new governor—but his authority was limited. The Roman forces withdrew from most of Armenia, leaving only a token presence.
"After this, T'eodoros, lord of Rshtunik', went to the Ishmaelite prince Mu'awiya in Damascus and saw him with very great gifts. And the Ishmaelite prince gave him clothing made with gold and silver threads and a veil [or: banner], after their fashion. [Mu'awiya] gave [T'eodoros] authority over Armenia, Iberia, Aghbania/Aghuania, Siwnik', as far as Kapkoh and the Chor Gate , and released him with honor. [Mu'awiya] stipulated that he should bring that country into service."
Theodore was rewarded handsomely for his defection. He received symbolic gifts (gold and silver clothing, a banner) and formal authority over the entire Caucasus region. The "Chor Gate" is the Caspian Gates—the strategic pass through the Caucasus.
"The breaking of the peace which had existed between Constans and Mu'awiya the Ismaelite prince, took place in the eleventh year of Constans' reign."
| Calendar | Date |
|---|---|
| Constans' 11th regnal year | 5 November 651 – 4 November 652 |
The peace was already broken when Constans invaded Armenia. The treaty of 649 had expired. The tribute had stopped.
"The king of the Ishmaelites ordered that all his troops should assemble in the West and make war on the Roman empire, to take Constantinople and to eliminate yet another kingdom as well."
The casus belli was now complete. Armenia had defected. Rome had invaded. The Arabs had their justification.
Section III Conclusion: The Road to Constantinople
The campaign of 652-653 CE was a turning point in the Roman-Arab war.
| Phase | Date | Event |
|---|---|---|
| Defection | 651 CE | Armenia surrenders to Caliphate |
| Mutiny | 651-652 | Roman army demands revenge |
| Invasion | Late 652 | Constans marches on Armenia with 100,000 men |
| Winter | 652-653 | Constans winters at Karin/Erzurum |
| Division | Winter 652-653 | Armenia splits; Theodore rebels |
| Theodore's coalition | Winter 652-653 | Iberia, Aghbania, Siwnik' join rebellion |
| Treasure seized | Winter 652-653 | Theodore captures Armenian treasury |
| Constans' rage | Early 653 | Emperor wants to destroy Armenia; clergy intercedes |
| Religious crisis | Early 653 | Constans forces Chalcedonian communion on Armenian bishops |
| Retreat | Easter 653 | Constans rushes back to Constantinople |
| Theodore's reward | Spring 653 | Muʿāwiya confirms him as ruler of Caucasus |
| War declared | 652 (11th year of Constans) | ʿUthmān orders attack on Constantinople |
Constans had failed to reassert Roman authority in Armenia. He had alienated the Armenian clergy through forced communion. He had failed to dislodge Theodore Rshtuni. He had failed to prevent the Arab-Caucasian alliance.
And now, as he raced back to Constantinople at Easter 653 CE, he knew what was coming.
The Arabs were already marching overland toward Chalcedon. The great assault on the Queen of Cities was imminent.
Section IV: The Armada — The Largest Fleet Ever Assembled (653–654 CE)
Sebeos' account of the Arab fleet is one of the most extraordinary numerical descriptions in all of early Islamic historiography. It is also, on the face of it, impossible. But impossibility is not untruth. It is hyperbole—the language of apocalyptic terror.
Let us first present Sebeos' numbers exactly as he wrote them, then analyze them critically, then revise them downward to historically plausible figures—while still acknowledging that the fleet was unprecedented in scale.
Sebeos' Account (Thomson Translation, with footnotes)
"All the troops who were in the east assembled: from Persia, Khuzhastan, from the region of India, Aruastan [North Mesopotamia], and from the region of Egypt [they came] to Muʿāwiya, the prince of the army who resided in Damascus. They prepared warships in Alexandria and in all the coastal cities. They filled the ships with arms and artillery—300 great ships with a thousand elite cavalry for each ship. He ordered 5,000 light ships to be built, and he put in them [only] a few men for the sake of speed, 100 men for each ship, so that they might rapidly dart to and fro over the waves of the sea around the very large ships. These he sent over the sea, while he himself took his troops with him and marched to Chalcedon."
"All the troops who were in the east assembled: from Persia, Khuzhastan, from the region of India, Aruastan [North Mesopotamia], and from the region of Egypt [they came] to Muʿāwiya, the prince of the army who resided in Damascus. They prepared warships in Alexandria and in all the coastal cities. They filled the ships with arms and artillery—300 great ships with a thousand elite cavalry for each ship. He ordered 5,000 light ships to be built, and he put in them [only] a few men for the sake of speed, 100 men for each ship, so that they might rapidly dart to and fro over the waves of the sea around the very large ships. These he sent over the sea, while he himself took his troops with him and marched to Chalcedon."
Part 1: The Numbers as Given — An Impossible Fleet
Vessel Type Number Crew per Ship Total Men Great ships 300 1,000 each 300,000 Light ships 5,000 100 each 500,000 Total 5,300 — 800,000
| Vessel Type | Number | Crew per Ship | Total Men |
|---|---|---|---|
| Great ships | 300 | 1,000 each | 300,000 |
| Light ships | 5,000 | 100 each | 500,000 |
| Total | 5,300 | — | 800,000 |
These numbers are impossible. No fleet of this size was assembled in the Mediterranean until the modern era. The entire population of Constantinople at this time was perhaps 200,000-300,000. Supplying such a force would have been logistically impossible.
Sebeos is telling his readers: This was the greatest army ever assembled against Constantinople. The numbers are meant to inspire terror, not to be added up.
Part 2: Comparative Evidence — What We Know About Early Islamic Fleets
The Cyprus Campaigns (649-650 CE)
Source Number of Ships Notes Theophanes 1,700 ships Certainly exaggerated Modern estimate 200-500 ships More plausible
| Source | Number of Ships | Notes |
|---|---|---|
| Theophanes | 1,700 ships | Certainly exaggerated |
| Modern estimate | 200-500 ships | More plausible |
The inscriptions from Soloi confirm that two major invasions of Cyprus took place in 649 and 650. The fleet was large enough to overwhelm the island's defenses and establish a Muslim presence. But it was not 800,000 men.
The Battle of the Masts (655 CE) — al-Ṭabarī's Account
Al-Ṭabarī records the Battle of the Masts (Dhāt al-Ṣawārī)—the naval battle that followed the failed siege. His numbers are also exaggerated, but they provide a comparative baseline:
| Source | Muslim Ships | Roman Ships |
|---|---|---|
| al-Ṭabarī | 200 | 500-1,000 |
| Modern estimate | 200-400 | 300-500 |
The Battle of the Masts was fought after the 654 disaster. The Muslim fleet at Phoenix was what survived—or what could be rebuilt—after the catastrophe at Constantinople.
The Second Umayyad Siege of Constantinople (717-718 CE)
The Umayyad fleet in 717 was famously large. Modern estimates range from 1,200 to 2,000 ships. The Abbasid fleet at the height of their power was comparable.
But the Rashidun Caliphate in 654 was less wealthy and less organized than the Umayyads of 717. Its fleet could not have been larger than the Umayyad fleet.
The Maximum Plausible Fleet
Parameter Estimate Justification Great ships 50-100 Large transport vessels Light ships 300-500 Faster fighting ships Total ships 350-600 Larger than Cyprus, smaller than 717 Troops carried 20,000-40,000 Sufficient to threaten Constantinople
| Parameter | Estimate | Justification |
|---|---|---|
| Great ships | 50-100 | Large transport vessels |
| Light ships | 300-500 | Faster fighting ships |
| Total ships | 350-600 | Larger than Cyprus, smaller than 717 |
| Troops carried | 20,000-40,000 | Sufficient to threaten Constantinople |
This is still a massive force—the largest amphibious invasion ever attempted up to that time.
Part 3: James Howard-Johnston's Assessment
Howard-Johnston's analysis is essential for understanding the campaign:
"A huge effort, itself bespeaking impressive organizational capacity, was made to assemble land and sea forces so large as to assure the Arabs of success in their campaign of conquest. Troops were summoned from far-flung reaches of the nascent empire, from the interior of former Sasanian territories (Khuzistan, Persia and the south-east marches facing India), from northern Mesopotamia (Aruastan) and from Egypt, to reinforce the army of Palestine and Syria under Muʿāwiya's command."
The Geographic Scope
Region Modern Area Significance Persia Iran The heartland of the former Sasanian Empire Khuzistan Southwestern Iran Major agricultural region India Sindh/Indus Valley The eastern frontier of the Caliphate Aruastan Northern Mesopotamia (Nisibis) The Jazira Egypt Egypt The wealthiest province
| Region | Modern Area | Significance |
|---|---|---|
| Persia | Iran | The heartland of the former Sasanian Empire |
| Khuzistan | Southwestern Iran | Major agricultural region |
| India | Sindh/Indus Valley | The eastern frontier of the Caliphate |
| Aruastan | Northern Mesopotamia (Nisibis) | The Jazira |
| Egypt | Egypt | The wealthiest province |
The Caliphate was mobilizing for total war. This was not a raid. It was an existential assault.
"The cities of the eastern Mediterranean littoral, chief among them Alexandria, were put to work building and equipping a huge invasion fleet, including large transport vessels and small, swift fighting ships. There is evident exaggeration both of numbers of ships and of their carrying capacity in the story as retailed by Sebeos. Siege-engines of various sorts were prepared, including fire-throwing machines, artillery and ship-borne towers from which to assault the sea-walls."
"The cities of the eastern Mediterranean littoral, chief among them Alexandria, were put to work building and equipping a huge invasion fleet, including large transport vessels and small, swift fighting ships. There is evident exaggeration both of numbers of ships and of their carrying capacity in the story as retailed by Sebeos. Siege-engines of various sorts were prepared, including fire-throwing machines, artillery and ship-borne towers from which to assault the sea-walls."
The technological sophistication is striking. The Arabs were not just sailing to Constantinople. They were bringing siege technology by sea—something that required extensive planning and skilled labor.
Howard-Johnston identifies a coordinated, multi-pronged strategy:
| Force | Composition | Mission |
|---|---|---|
| 1. Land army (Muʿāwiya) | Veterans of Syria and Palestine | Advance overland to Chalcedon |
| 2. Reserve army | Garrison troops from Anatolian bases | Secure communications; keep control of Anatolia |
| 3. First fleet (light ships) | From Palestine/Syria | Arrive at Chalcedon simultaneously with Muʿāwiya; kept inshore |
| 4. Second fleet (great ships) | From Alexandria | Carry siege engines and heavy troops; arrive later |
This is not the plan of a disorganized horde. This is the plan of a professional military command.
"When the forces, ships and equipment were assembled after a year and a half of preparations (if, as argued, the caliph ordered preparations to be made in the second half of 652), they were organized into four independent fighting forces."
Phase Date Action Command given Second half of 652 ʿUthmān orders preparations Troop movements 652-653 Forces from Persia, Egypt, etc. converge Fleet construction 653 Alexandria and Syrian ports build ships Island bases secured 653 Rhodes, Cos, Crete occupied Final assembly Early 654 All forces ready Assault Summer 654 Catastrophe
"When the forces, ships and equipment were assembled after a year and a half of preparations (if, as argued, the caliph ordered preparations to be made in the second half of 652), they were organized into four independent fighting forces."
| Phase | Date | Action |
|---|---|---|
| Command given | Second half of 652 | ʿUthmān orders preparations |
| Troop movements | 652-653 | Forces from Persia, Egypt, etc. converge |
| Fleet construction | 653 | Alexandria and Syrian ports build ships |
| Island bases secured | 653 | Rhodes, Cos, Crete occupied |
| Final assembly | Early 654 | All forces ready |
| Assault | Summer 654 | Catastrophe |
Part 4: A Revised Estimate of the Fleet
Step 1: Comparative Baseline — Known Campaigns
Campaign Date Estimated Ships Estimated Men Cyprus (first attack) 649 200-500 10,000-25,000 Cyprus (second attack) 650 200-500 10,000-25,000 Rhodes occupation 652-653 100-300 5,000-15,000 Second Umayyad siege 717 1,200-2,000 60,000-100,000 Abbasid peak 9th century 1,000-2,000 50,000-100,000
| Campaign | Date | Estimated Ships | Estimated Men |
|---|---|---|---|
| Cyprus (first attack) | 649 | 200-500 | 10,000-25,000 |
| Cyprus (second attack) | 650 | 200-500 | 10,000-25,000 |
| Rhodes occupation | 652-653 | 100-300 | 5,000-15,000 |
| Second Umayyad siege | 717 | 1,200-2,000 | 60,000-100,000 |
| Abbasid peak | 9th century | 1,000-2,000 | 50,000-100,000 |
The 654 campaign was larger than Cyprus or Rhodes, but smaller than the Umayyad siege of 717 (which also failed).
Step 2: Logistical Constraints
Factor Limitation Shipbuilding capacity Alexandria and Syrian ports could produce hundreds of ships, not thousands Crew recruitment The Caliphate lacked a large maritime population; most crews were conscripted or prisoners Supply Feeding 40,000 men at sea requires enormous supplies Fresh water The fleet would need to make landfall regularly
| Factor | Limitation |
|---|---|
| Shipbuilding capacity | Alexandria and Syrian ports could produce hundreds of ships, not thousands |
| Crew recruitment | The Caliphate lacked a large maritime population; most crews were conscripted or prisoners |
| Supply | Feeding 40,000 men at sea requires enormous supplies |
| Fresh water | The fleet would need to make landfall regularly |
A fleet of 500-800 ships (total) is plausible. A fleet of 5,300 ships is not.
Step 3: A Reasonable Reconstruction
Vessel Type Plausible Number Crew per Ship Total Men Great ships (transports) 50-100 200-500 10,000-50,000 Light ships (fighting) 300-500 50-100 15,000-50,000 Total ships 350-600 — 25,000-100,000
| Vessel Type | Plausible Number | Crew per Ship | Total Men |
|---|---|---|---|
| Great ships (transports) | 50-100 | 200-500 | 10,000-50,000 |
| Light ships (fighting) | 300-500 | 50-100 | 15,000-50,000 |
| Total ships | 350-600 | — | 25,000-100,000 |
A more conservative estimate:
| Estimate | Ships | Men |
|---|---|---|
| Low | 350 | 25,000 |
| Medium | 500 | 40,000 |
| High | 800 | 75,000 |
Even the low estimate represents a massive amphibious assault—the largest in the Mediterranean since the Persian wars.
Step 4: The Land Army
Sebeos does not give numbers for the land army, but it was likely comparable in size to the naval force.
| Source | Number | Likely Reality |
|---|---|---|
| Sebeos (implied) | Tens of thousands | 20,000-40,000 |
| Constans' army in Armenia | 100,000 (exaggerated) | 20,000-30,000 |
| Plausible Arab land force | — | 20,000-40,000 |
The total invading force (land and sea) was likely 50,000-100,000 men. This is catastrophically large—enough to threaten Constantinople seriously.
Section IV Conclusion: The Numbers Are Secondary — The Cataclysm Is Real
The exact number of ships and men will never be known. Sebeos' figures are symbolic, not statistical. But the scale of the campaign is undeniable:
Troops were summoned from Persia, India, Egypt, and Mesopotamia.
Ships were built in every coastal city from Syria to Alexandria.
Island bases (Cyprus, Rhodes, Cos, Crete) were secured in advance.
Siege engines were loaded onto ships.
Muʿāwiya marched overland to Chalcedon.
The assault was meant to be overwhelming.
It failed—not because of Roman valor, but because of a storm.
Section V: The Invasion — The Subjugation of Anatolia and the Approach to the Queen of Cities (Spring–Summer 654 CE)
Before we trace the invasion, we must fix the date with absolute precision. Sebeos provides the anchor:
"The destroyer reached Chalcedon in the 13th year of Constans."
| Calendar | Date |
|---|---|
| Constans II's 13th regnal year | Began 5 November 653 CE |
| End | 4 November 654 CE |
The campaign therefore unfolded in 654 CE. The Tripoli revolt occurred in the winter months of 653-654 (O'Sullivan). The great assault was planned for early summer 654—the optimal season for naval operations in the Mediterranean before the autumn storms.
Theophanes (via Theophilus of Edessa) dates the Battle of the Masts (Phoenix) to 654-655 CE—the year after the failed siege. This fits perfectly: the siege failed in summer 654; the Romans counterattacked in 655; the Arabs defeated them at Phoenix.
Part 1: The Overland Invasion — Muʿāwiya's March Across Anatolia
"These [the light ships] he sent over the sea, while he himself took his troops with him and marched to Chalcedon. When he penetrated the whole land, all the inhabitants of the country submitted to him, those on the coast and in the mountains and on the plains."
The phrase "all the inhabitants of the country submitted" is crucial. Muʿāwiya did not fight his way across Anatolia. The Roman population surrendered—not out of cowardice, but out of despair. The Roman army had retreated into Constantinople. The themata (provincial armies) were either non-existent or withdrawn.
Which Themata Surrendered?
| Theme (Province) | Location | Likely Action |
|---|---|---|
| Anatolic Theme | Central Anatolia | Submitted without resistance |
| Armeniac Theme | Northeast Anatolia (Pontus) | Weakened by Armenian defections; submitted |
| Opsician Theme | Northwestern Anatolia (Bithynia) | Directly in Muʿāwiya's path; submitted |
| Thracesian Theme | Western Anatolia (Aegean coast) | Possibly submitted or bypassed |
| Cibyrrhaeot Theme | Southern Anatolia (naval theme) | Fleet withdrawn to Constantinople |
The Roman army had been concentrated in Constantinople:
"On the other hand, the host of the Roman army entered Constantinople to guard the city."
Constans made a strategic decision: abandon Anatolia to save the capital. He pulled every available soldier back to Constantinople. The provinces were left defenseless.
The Route of Muʿāwiya's March
| Stage | Location | Modern | Significance |
|---|---|---|---|
| 1. Assembly | Damascus | Damascus, Syria | Base of operations |
| 2. Northward march | Through Syria and Cilicia | — | Avoiding Roman naval patrols |
| 3. Taurus crossing | Cilician Gates | Gülek Pass, Turkey | Strategic pass into Anatolia |
| 4. Central Anatolia | Through Cappadocia | Central Turkey | Rapid advance; no resistance |
| 5. Westward | Through Galatia and Bithynia | — | Local populations submit |
| 6. Destination | Chalcedon | Kadıköy, Istanbul | Across the Bosporus from Constantinople |
The distance from Damascus to Chalcedon is approximately 1,200 kilometers (750 miles). A forced march could cover this in 6-8 weeks. Muʿāwiya likely left Damascus in late spring (April-May 654) and arrived at Chalcedon in early summer (June-July 654).
Part 2: The Naval Invasion — The Fleets Converge
"He kept the many light ships ready at the seashore, so that when the very heavy ships might arrive at Chalcedon he could rapidly go to their support. Behold the great ships arrived at Chalcedon from Alexandria with all the small ships and all their equipment. For they had stowed on board the ships mangonels, and machines to throw fire, and machines to hurl stones, archers and slingers, so that when they reached the wall of the city they might easily descend onto the wall from the top of towers, and break into the city."
The fleet was divided into two waves:
| Wave | Origin | Composition | Role |
|---|---|---|---|
| First wave | Palestine/Syria | Light ships (swift, maneuverable) | Arrive simultaneously with Muʿāwiya; kept inshore |
| Second wave | Alexandria | Great ships (heavy transports) | Carry siege engines, towers, heavy troops |
Howard-Johnston explains:
"The cities of the eastern Mediterranean littoral, chief among them Alexandria, were put to work building and equipping a huge invasion fleet, including large transport vessels and small, swift fighting ships."
The light ships from Syria and Palestine were faster. They could reach Chalcedon quickly and establish a naval presence—keeping the Romans bottled up in Constantinople. The great ships from Alexandria were slower but carried the siege engines necessary for the assault.
| Stage | Route | Distance | Time |
|---|---|---|---|
| 1 | Alexandria → Cyprus | ~400 km | 5-7 days |
| 2 | Cyprus → Rhodes | ~400 km | 5-7 days |
| 3 | Rhodes → Cos | ~100 km | 1-2 days |
| 4 | Cos → Crete | ~300 km | 4-5 days |
| 5 | Crete → Aegean islands | Variable | 5-10 days |
| 6 | Aegean → Sea of Marmara | ~500 km | 7-10 days |
| 7 | Sea of Marmara → Chalcedon | ~100 km | 1-2 days |
The Alexandrian fleet had to navigate the entire eastern Mediterranean, stopping at Muslim-held islands (Cyprus, Rhodes, Cos, Crete) for supplies and fresh water. The total voyage was over 2,000 kilometers and could take 4-6 weeks.
O'Sullivan notes:
"With Cyprus and Rhodes now under Muslim control, the way would have been open for an attack on Constantinople."
The occupation of Rhodes in 652-653 was not a raid. It was a strategic move to secure a naval base halfway between Egypt and the Bosporus.
| Island | Date of Capture | Strategic Value |
|---|---|---|
| Cyprus | 649-650 | Supplies, fresh water, naval base |
| Arados | 650 | Near Syrian coast; naval base |
| Rhodes | 652-653 | Mid-Aegean; controls sea lanes |
| Cos | 653 | Near Rhodes; additional base |
| Crete | 653 | Southern Aegean; controls approaches |
These islands formed a chain of bases across the Mediterranean, allowing the fleet to resupply and repair along the way.
Part 3: The Tripoli Revolt — A Wintertime Setback (Winter 653-654)
Theophanes' Account (via Theophilus of Edessa)
"Muʿāwiya commanded that a great navy armament should be made with a view to his fleet's sailing against Constantinople. The entire preparation was being made at Tripoli in Phoenicia (modern Tripoli, Lebanon). On seeing this, two Christ-loving brothers, sons of a trumpeter (τῷ τοῦ βουκινάτορος υἱοί), who lived in Tripoli, were fired with a divine zeal and rushed to the city prison, where there was a multitude of Roman captives. They broke down the gates and, after liberating the captives, rushed to the governor of the city, whom they slew together with his retinue and, having burned all the equipment, sailed off to the Roman state."
O'Sullivan pinpoints the timing:
"The prisoners at Tripoli killed the whole Muslim garrison, which was probably the small permanent force known to have been stationed in the city during the winter months and periodically reinforced in the spring: the revolt therefore took place in winter — probably (since it appears the ships were almost ready) only a few months before the intended departure of the fleet."
O'Sullivan continues:
"Nevertheless, this event only delayed the departure of the Muslim fleet, under the command of Abū 'l-Aʿwar. Reaching Phoenix on the coast of Lycia, the Muslims met the Byzantine fleet, personally commanded by the emperor Constans. The Byzantines were routed with great slaughter; the Muslim fleet then returned home with much booty."
But note the key point: the revolt occurred before the main assault. The fleet destroyed at Tripoli was not the entire invasion fleet—it was one component. The great ships from Alexandria were not affected.
O'Sullivan is explicit:
"These details indicate that Tripoli could not have been, as the sources claim, the principal naval base for the attack. Rather, following descriptions of the attack on Cyprus in 649 and Sebeos' account of the 654 attack, there must have been several Islamic naval bases, the largest of them in Egypt. Indeed, the Tripoli revolt probably had little impact on plans for the attack on Constantinople."
The Tripoli revolt was a dramatic story—Christian prisoners rising up, killing their captors, burning ships, escaping to Roman territory. It was remembered because it was a rare Christian victory in an otherwise disastrous period. The main fleet from Alexandria, which was not destroyed, received less attention because its destruction by storm was too embarrassing for some sources to record directly.
Part 4: The Arrival at Chalcedon — The Queen of Cities in Sight
"The destroyer reached Chalcedon in the 13th year of Constans."
Chalcedon was the city directly across the Bosporus from Constantinople. From its shores, Muʿāwiya could see the domes and walls of the imperial capital. He was that close.
"He kept the many light ships ready at the seashore, so that when the very heavy ships might arrive at Chalcedon he could rapidly go to their support."
The light ships (from Syria/Palestine) arrived first. They took up positions inshore, waiting for the great ships from Alexandria.
"Behold the great ships arrived at Chalcedon from Alexandria with all the small ships and all their equipment."
The entire fleet was now assembled. The soldiers could see the walls of Constantinople from their decks.
The great ships carried:
| Equipment | Function |
|---|---|
| Mangonels (stone-throwing machines) | To batter the sea walls |
| Machines to throw fire | Incendiary weapons |
| Machines to hurl stones | Artillery |
| Archers and slingers | To suppress defenders on the walls |
| Ship-borne towers | To overtop the walls and allow descent |
Howard-Johnston notes:
"Siege-engines of various sorts were prepared, including fire-throwing machines, artillery and ship-borne towers from which to assault the sea-walls (the towers are not mentioned in the list of war-machines, but are mentioned à propos of the assault plan and were among the equipment destroyed at sea by the storm)."
"He ordered the ships to be deployed in lines and to attack the city."
The plan was simple but devastating:
The light ships would screen the great ships from Roman fire ships.
The great ships would approach the sea walls.
The towers on the great ships would overtop the walls.
Soldiers would descend from the towers onto the walls.
The sea walls would be breached.
Muʿāwiya's land army would cross the Bosporus and enter the city.
Nothing stood in their way—except the weather.
Part 5: The Date of the Assault — August 654 CE
The Mediterranean storm season typically begins in late summer (August-September) and peaks in autumn (October-November). The Arabs chose early summer (June-July) to avoid storms. But the fleet was delayed.
| Factor | Impact on Timeline |
|---|---|
| Troop assembly (late 652-653) | Delayed departure |
| Fleet construction (653) | Ships needed time to complete |
| Island base preparation (653) | Logistics took longer than expected |
| Tripoli revolt (winter 653-654) | Minor delay |
| Alexandrian fleet voyage (spring-summer 654) | 4-6 weeks at sea |
The fleet did not arrive until late summer 654—right at the start of the storm season.
Section V Conclusion: The Invasion Before the Storm
By August 654 CE, the situation was grim for the Roman Empire:
Muʿāwiya and his land army were encamped at Chalcedon, across the Bosporus from Constantinople.
The Anatolian themata had submitted or collapsed.
The Roman army was bottled up inside Constantinople.
The light fleet from Syria/Palestine was in place.
The great fleet from Alexandria had arrived, carrying siege engines and ship-borne towers.
Section VI: The Annihilation — The Storm, the Retreat, and the Aftermath (August 654 – January 655 CE)
By August 654 CE, the largest amphibious invasion force ever assembled was poised to strike. Muʿāwiya's land army waited at Chalcedon, just across the Bosporus from Constantinople. The great fleet from Alexandria had arrived, carrying siege towers, stone-throwing machines, and fire-projecting engines. The light fleet from Syria and Palestine was in position. The soldiers could see the walls of the Queen of Cities from their ships.
Then a storm intervened.
Part 1: Sebeos' Account — "The Awesome Power of the Lord"
Sebeos' description of the storm is the most dramatic and theologically charged passage in his entire History. It is apocalyptic literature as much as historical reportage.
"When they were about two stades' distance (approximately 370 meters / 1,200 feet) from the dry land, then one could see the awesome power of the Lord. For the Lord looked down from heaven with the violence of a fierce wind, and there arose a storm, a great tempest, and the sea was stirred up from the depths below. Its waves piled up high like the summits of very high mountains, and the wind whirled around over them; it crashed and roared like the clouds, and there were gurglings from the depths."
Sebeos is not writing a meteorological report. He is writing theology. The language echoes Psalm 32:22 ("the Lord looked down from heaven") and Psalm 82:17-19 (divine judgment). The "waves piled up high like mountains" evokes the Red Sea crossing (Exodus 15:8)—but here, it is not Israel's enemies who drown; it is Ishmael's army.
| Biblical Parallel | Sebeos' Adaptation |
|---|---|
| Exodus 14:21-28 (Red Sea parts, Egyptians drown) | Arabs drown as Egyptians did |
| Jonah 1:4 (Lord hurls great wind upon the sea) | Same imagery—divine wrath |
| Psalm 32:22 (God looks down from heaven) | Direct quotation |
| Isaiah 37 (Sennacherib's army destroyed by angel) | Arabs destroyed by wind |
The message is unmistakable: To the Romans God is fighting against the Arabs just as He fought against Pharaoh.
"The towers collapsed, the machines were destroyed, the ships broke up, and the host of soldiers were drowned in the depths of the sea. The survivors were dispersed on planks over the waves of the sea. Cast hither and thither in the tossing of the waves, they perished; for the sea opened its mouth and swallowed them. There remained not a single one of them. On that day by his upraised arm God saved the city through the prayers of the pious king Constans. For six days the violence of the wind and the turbulence of the sea did not cease."
The exaggeration is evident—"there remained not a single one of them" cannot be literally true, since some survivors escaped. But the intent is clear: the fleet was utterly destroyed. The siege engines—painstakingly built in Alexandria—were smashed. The ship-borne towers collapsed. The soldiers drowned.
The six-day storm indicates a prolonged weather event—likely a meltemi (a strong, dry north wind that blows over the Aegean in July and August) combined with a cyclonic depression.
Part 2: The Immediate Aftermath — The Panic at Chalcedon
"When the Ismaelites saw the fearsome hand of the Lord, their hearts broke. Leaving Chalcedon by night, they went to their own land."
Muʿāwiya's land army, which had marched across Anatolia without resistance, now fled in panic. The retreat was nocturnal—under cover of darkness, to avoid Roman counterattack.
Key detail: "Leaving Chalcedon by night." This was not an orderly withdrawal. It was a rout. The soldiers feared that the same divine wrath that destroyed the fleet would now destroy them.
"The other army, which was quartered in Cappadocia, attacked the Greek army. But the Greeks defeated them, and it fled to Aruastan (northern Mesopotamia, around Nisibis) pillaging Fourth Armenia (Sophene/Arsamosata)."
The reserve army—which had been positioned to secure communications and control Anatolia—now faced the Roman counterattack. The Romans, emboldened by the destruction of the fleet, sallied forth and defeated the Arab rear guard.
The defeated Arabs fled eastward, pillaging Fourth Armenia as they went. This is Sophene (modern-day Arsamosata, near the Euphrates in eastern Turkey). They were scavenging for supplies as they retreated—a sign of disorganization and desperation.
Part 3: The Poet's Witness — Abū al-ʿIyāl al-Hudhalī's Months of Horror
The Egyptian poet Abū al-ʿIyāl al-Hudhalī was there. He was captured by the Romans and witnessed the retreat from the other side. His poem provides independent, contemporary confirmation of the timeline.
The Poem (Translation)
"From Abū al-ʿIyāl of Hudhayl: Listen [O messenger] to me speak and don't misspeak [the message] I send.
Bring Muʿāwiya b. Ṣakhr a sign that the swiftest courier will fly to him with,
and the lord ʿAmr, bring him a page from me, on which a finely penned script is visible,
and to Ibn Saʿd—if I put him last it is because his dividing wronged us when he divided unevenly on distribution day, but I let him go on and deferred to his dignity, though I saw what he did—
and to whatever reasonable men you come to, the upright [among whom] the Scripture was revealed:
After you [departed], we fought in our camp near the fields on a day that will be asked about,
an inescapable, chest-oppressing affair in which souls' blood [was shed]—
throughout the battle you see strong young fighters of ours falling and spurting like a waterskin's spout
and older sayyids spilling their brains while others are bent double, coughing [up blood] onto spear-shafts.
And now Rajab has come and gone, and the two Jumādās, and the month of Shaʿbān
has come, and we thought for nine full [nights] that we counted that their army had left.
[But suddenly] a battle broke out that milked blood, at the hands of a false and deceitful [enemy]—
[then] they headed [back] to the edge of the open area, halting at times and at times moving on, until they departed.
The arrows were whizzing around us, their heads like wheat spikes, leaping,
and the spears were like [taut] well-ropes as they stabbed at us and we stabbed back."
Abū al-ʿIyāl lists the months in reverse order:
"And now Rajab has come and gone, and the two Jumādās, and the month of Shaʿbān has come."
Let us place these months in 34 AH (the year of the invasion):
| Month | AH Equivalent | Julian Date (654-655 CE) | Event |
|---|---|---|---|
| Jumādā al-Ūlā (First Jumādā) | 34 AH | 17 November – 16 December 654 | After the retreat? |
| Jumādā al-Thāniya (Second Jumādā) | 34 AH | 16 December 654 – 14 January 655 | Winter retreat ongoing |
| Rajab | 34 AH | 15 January – 13 February 655 | "Come and gone" |
| Shaʿbān | 34 AH | 14 February – 15 March 655 | "Has come" |
O'Sullivan notes that the months named correspond to the period from mid-November 654 to mid-March 655. The poet and his contingent were left behind—captured or isolated—and suffered further losses long after the main fleet had been destroyed.
Nathaniel Miller observes:
"The speaker and his fellow soldiers were part of a Muslim contingent left behind in Byzantine territory after the withdrawal of a larger force; this perhaps took place at the end of a summer campaign... The speaker and his contingent were left surrounded by the enemy and were thus unable to withdraw. They suffered serious losses at this time. At a certain point, they thought that the enemy had withdrawn, only to suffer further losses in a surprise attack."
The poet mentions "nine full nights that we counted that their army had left." This refers to a period of false hope—the poet and his companions believed the Romans had withdrawn, only to be attacked again.
This matches Sebeos' account of the reserve army in Cappadocia being defeated by the Greeks. The "nine nights" may correspond to the period between the initial retreat and the final Roman counterattack.
Part 4: The Retreat Sequence — August 654 to January 655
Phase 1: The Storm (August 654)
| Date (approx.) | Event |
|---|---|
| Early August 654 | Fleet assembles at Chalcedon |
| Mid-August 654 | Fleet approaches Constantinople (two stades from shore) |
| Mid-August 654 | Storm strikes; fleet destroyed |
| Mid-August 654 | Muʿāwiya abandons Chalcedon by night |
Phase 2: The Retreat from Anatolia (August – October 654)
| Stage | Route | Time | Events |
|---|---|---|---|
| 1 | Chalcedon → Central Anatolia | 1-2 weeks | Land army retreats in panic |
| 2 | Central Anatolia → Cappadocia | 1-2 weeks | Reserve army defeated by Romans |
| 3 | Cappadocia → Aruastan (Nisibis region) | 2-3 weeks | Arabs pillage Fourth Armenia (Sophene) for supplies |
| 4 | Aruastan → Syria/Mesopotamia | 2-3 weeks | Remnants of army return to base |
Total retreat time: Approximately 6-8 weeks. The land army likely reached safety by October 654.
Phase 3: The Winter Quarters (October 654 – January 655)
Sebeos records:
"After the autumn had passed and winter was approaching, the army of Ismael came and took up quarters at Dvin."
The Arabs did not all return to Syria. A significant force wintered at Dvin (the Armenian capital, near modern Yerevan). Their purpose: to intimidate Iberia (Georgia) into submission.
"It was planning to put Iberia to the sword. It parleyed with them in a threatening message, that they should either submit to them, or abandon their country and depart. However, they did not agree to do so, but prepared to oppose them in battle. So the Ismaelites moved against them in war, to go and exterminate them completely."
But again, divine intervention saved the Georgians:
"As they were setting out on their way, cold and winter snow beset them. Therefore they departed rapidly for Asorestan (Mesopotamia), and caused no harm to Armenia."
The winter snows of the Caucasus forced the Arabs to abandon their campaign against Iberia. They retreated to Mesopotamia by January 655.
Abū al-ʿIyāl's months correspond to this winter retreat:
| Month (34 AH) | Julian Date | Poet's Statement | Historical Event |
|---|---|---|---|
| Jumādā al-Ūlā | 17 Nov – 16 Dec 654 | Implied as past | Retreat ongoing |
| Jumādā al-Thāniya | 16 Dec 654 – 14 Jan 655 | Implied as past | Winter quarters at Dvin |
| Rajab | 15 Jan – 13 Feb 655 | "Come and gone" | Campaign against Iberia fails due to snow |
| Shaʿbān | 14 Feb – 15 Mar 655 | "Has come" | Arabs retreat to Asorestan |
The poet writes during Shaʿbān (February-March 655)—months after the main fleet was destroyed. He and his companions have been captured or isolated in Roman territory. They are still waiting for rescue, or for death.
Part 5: The Theophilus Account — The Battle of Phoenix (655 CE)
The Tripoli-Phoenix narrative preserved in Theophilus of Edessa (via Theophanes, Michael the Syrian, Agapius, and the Chronicle of 1234) is not a separate event. It is the aftermath of the 654 disaster.
O'Sullivan writes:
"These events may be understood better by placing Sebeos' account between them. Thus, the Tripoli revolt occurred in the winter months of 653-654 but hardly delayed the start of the combined sea and land attack in the early summer of 654. The sudden destruction of the Islamic fleet near the sea-walls of Constantinople stopped the attack short, and placed the Muslims onto the defensive. The following year, 655, new fleets set out from Syria and Egypt towards Phoenix in an attempt to block a Byzantine counterattack, which the emperor Constans himself was commanding, accompanied by his brother Theodosius."
| Year | Event |
|---|---|
| Winter 653-654 | Tripoli revolt; prisoners burn ships and escape |
| Spring-Summer 654 | Main fleet from Alexandria sails; Muʿāwiya marches to Chalcedon |
| August 654 | Storm destroys main fleet; Muʿāwiya retreats |
| Autumn 654 | Constans counterattacks; defeats Arab reserve army in Cappadocia |
| Winter 654-655 | Arabs winter at Dvin; attempt to attack Iberia fails due to snow |
| Spring 655 | Constans gathers 1000 ships (exaggerated) for counterattack |
| Summer 655 | Battle of Phoenix (Dhāt al-Ṣawārī); Muslims win, but at great cost |
O'Sullivan explains:
"Since they all record a decisive, though hard-won, Muslim victory, there seems no reason why the Islamic fleet should not have continued its mission against Constantinople. On the contrary, it returned home. As the sources record them, the Tripoli-Phoenix events do not have a logical sequel."
The lack of a sequel—the Muslim fleet's failure to continue to Constantinople after winning at Phoenix—has baffled historians. But the sequel is actually the prequel: the great fleet had already been destroyed in 654. The Phoenix fleet was a smaller, hastily rebuilt force sent to block the Roman counterattack, not to conquer Constantinople.
O'Sullivan again:
"The Islamic tradition emphasizes the numerical inferiority of Muslim forces at the battle, a detail that seems problematic except in light of the disaster suffered at Constantinople. Against the odds, however, the Muslims defeated their opponent, and almost killed Constans, in a battle agreed to have been exceptionally hard-fought and bloody. The Byzantine counterattack was thus stopped in its turn, and the Muslims secured Cyprus—but so heavy had been their losses in 654 and 655 that they were unable to renew the naval offensive."
Part 6: The Theological Meaning — Sebeos' Apocalyptic Interpretation
Sebeos frames the entire campaign as divine judgment:
| Element | Theological Meaning |
|---|---|
| The storm | God's direct intervention |
| "Six days" | Completeness of divine action |
| "Not a single one remained" | Total annihilation (exaggeration for effect) |
| "Through the prayers of the pious king Constans" | Despite Constans' Monotheletism, God heard him |
| "Their hearts broke" | Psychological collapse of the invaders |
The storm is not a natural disaster in Sebeos' telling. It is the Hand of God.
The theological message to Sebeos' Christian readers is clear: God has not abandoned His people. Even when the largest army in history is at the gates, God can save.
Section VI Conclusion: The Cataclysm That Changed Everything
By January 655 CE, the great invasion was over.
Fleet destroyed: 300 great ships and 5,000 light ships shattered by storm.
Siege engines lost: Towers, mangonels, fire-throwing machines sunk.
Land army routed: Muʿāwiya fled Chalcedon by night.
Reserve army defeated: Romans crushed the Arab rear guard in Cappadocia.
Winter campaign failed: Snow forced Arabs to abandon attack on Iberia.
Poet captured: Abū al-ʿIyāl languished in Roman captivity, writing desperate letters.
The Caliphate had suffered its first great defeat. The aura of invincibility was shattered. The Egyptian troops who had built the fleet and suffered the storm returned to Egypt bitter and angry. They blamed their commander, Ibn Saʿd, and his foster brother, Caliph ʿUthmān.
Within two years, the Caliph would be assassinated. The First Fitna would tear the Caliphate apart.
The storm saved Constantinople. And it changed the world.
Section VII: The Egyptian Rage — How the 654 Catastrophe Led to the Murder of Caliph ʿUthmān
The murder of Caliph ʿUthmān in June 656 CE has been analyzed by generations of historians. The grievances are well known: nepotism, centralization of power, economic exploitation, and the rising power of the Umayyad clan at the expense of the early Islamic elite. But there is a missing piece in this puzzle—a catastrophic event that the Arabic sources barely mention, but which the Christian sources preserve in vivid detail.
The failed siege of Constantinople in 654 CE was not merely a military defeat. It was a psychological and economic catastrophe for the Egyptian contingent that had built the fleet, sailed against the Queen of Cities, and watched their ships shattered by a storm while Muʿāwiya's land army fled from Chalcedon by night. These men returned to Egypt not as conquering heroes, but as humiliated survivors. Their hopes of new lands, new wealth, and new status were dashed in a single night.
Martin Hinds, in his seminal study of the murder of ʿUthmān, identified the grievances of the Egyptian early-comers without knowing the full scale of the 654 disaster. He noted that the Egyptians were the most active of the provincial opposition, that they were "old-guard interests" whose influence had waned under ʿUthmān's governors, and that they sought new opportunities that never materialized. What Hinds did not have was the contemporary testimony of Sebeos and the poet Abū al-ʿIyāl al-Hudhalī—testimony that reveals the specific catastrophe that turned discontent into open rebellion.
This section will synthesize the evidence: the economic and social grievances documented by Hinds, the military catastrophe recorded by Sebeos, and the poetic lament of an Egyptian survivor. We will demonstrate that the 654 siege was not a footnote in early Islamic history—it was the catalyst that transformed the Egyptian opposition into a lethal force capable of killing the Caliph.
Part 1: Martin Hinds on the Egyptian Opposition — Grievances Without a Cause
Hinds begins by describing the composition of the Egyptian army at the time of the conquest:
"The conquest of Egypt began in 19/640 when 'Amr b. al-'As went there with a force of 3,500 or 4,000 'Akkis, one third of whom were from the clan of Ghafiq. He was soon afterwards joined by an army of 10,000 or 12,000 reinforcements, led by al-Zubayr b. al-'Awwam and including other prominent ṣaḥābah. With the resultant combined force, 'Amr conquered Alexandria in 21/642 and went on to establish at Babylon the base called al-Fusṭāṭ, where he allotted khitat to his army."
The early-comers of Egypt were a privileged elite. 'Umar had granted them preferential stipends (maximum 200 dinars per annum) and allowed them to settle in al-Fusṭāṭ with their families. They were the "old guard" of Egypt—men who had fought in the conquest and expected to reap the rewards.
Under ʿUthmān, this situation changed dramatically. In 25/645-6, ʿUthmān replaced 'Amr with ʿAbd Allāh b. Saʿd b. Abī Sarḥ as governor of all Egypt. Hinds writes:
"Change came in 25/645-6 when 'Uthman replaced 'Amr with Ibn Sa'd as governor of all Egypt. Here, as with his appointment of al-Walid b. 'Uqba to Kufa at the same time, 'Uthman was attempting to empower an executive upon whom he could rely. In particular, he was concerned to prise control of the revenues of Egypt from the hands of 'Amr."
Ibn Saʿd introduced a centralized fiscal system that replaced the disorder of the conquest period. Hinds notes:
"Ibn Sa'd went on to set up an effective fiscal system which preserved features of the Byzantine system but was characterized by a centralized and uniform method of collection. As a result, it is to be expected that not only indigenous officials and dignitaries but also the Arab conquerors of Egypt were deprived of the opportunities for self-enrichment which they had hitherto enjoyed."
The early-comers were being squeezed—both by taxation and by the influx of newcomers.
ʿUthmān authorized large-scale campaigning to the west, which brought new troops to Egypt. Hinds explains:
"Ibn Sa'd's desire to resume large-scale campaigning to the west, which 'Umar had earlier halted... 'Uthman, after some hesitation, agreed to sanction this, and in 27/647-8 reinforced Ibn Sa'd with a large army (jaysh 'aẓīm) raised in the vicinity of Medina and including a significant number of Qurashis."
The newcomers had to be accommodated within Egypt, since the campaigns did not result in permanent settlements outside the country. Hinds describes the effect on the khitat of al-Fusṭāṭ:
"The obvious result was that newcomers had to be accommodated within Egypt, and the effects of this at the khitat of Fustat are described by Ibn 'Abd al-Hakam when he says: 'there were spaces between the tribal groupings; but when reinforcements came in the time of 'Uthman b. 'Affan and afterwards and the people became numerous, each group made space for its brethren, so that the buildings became many and coalesced'."
The early-comers were being pushed aside—both literally and metaphorically.
Hinds provides a concrete example of how the old guard lost influence:
"In connection with newcomers, Ibn 'Abd al-Hakam gives an example of the sort of change consequent upon their arrival when he gives details about a Hadrami who had come to Egypt with 'Amr and had his khitta among Al Ayda'an b. Sa'd b. Tujib of al-Sakun. He and other Hadrami early comers were 'with their maternal uncles from Tujib. Then their reinforcements came in the time of 'Uthman and took khitat to the east of Silhim and al-Sadif as far as the desert. Accordingly, those of them who were with Tujib and wanted to move moved.' In short, Al Ayda'an and presumably other early comer groups lost some of their strength when the newcomers arrived."
The old guard was being marginalized—their spaces taken, their influence waning, their status declining.
When the Egyptian opposition confronted ʿUthmān, they demanded:
Adherence to the Qur'an and the sunna of the Prophet
Restoration of stipends to those who had been deprived
Return of those who had been banished
Fair division of wealth "among those with rights to it"
Their choice of governor
Hinds summarizes their demands:
"The provincials who were connected with the murder of 'Uthman were all seeking to preserve positions and interests which they had either lost or were in the process of losing. Basically they were provincial early-comers with small followings who were trying to retain privileges acquired in the disorder that followed the conquests and who were sensitive to the threat posed to their positions both by more substantial leaders of a type which 'Umar had sought to hold in check and by the central government itself."
But Hinds does not know about the 654 catastrophe. He does not mention the storm, the fleet, or the retreat. The specific grievance that turned discontent into murderous rage is missing from his analysis—because the Arabic sources suppressed it.
Part 2: The 654 Catastrophe — What the Egyptian Survivors Lost
The Egyptian contingent that sailed against Constantinople in 654 had hopes of conquest and settlement. They had seen what happened in Egypt—the newcomers were taking their places, their stipends were being cut, their status was declining. But there was a solution: new lands.
Anatolia was the richest province of the Roman Empire. Its fertile plains and strategic cities (Cappadocian Caesarea, Amorium, Nicaea) were not yet conquered. If the Egyptian contingent could seize these lands, they could establish new khitat, acquire new wealth, and restore their status—far from the control of Ibn Saʿd and the newcomers.
Hinds notes that the failure to expand Kufan territories was a cause of Kufan opposition. The same logic applies to Egypt—but even more powerfully. The Egyptians had built the fleet. They had sailed against Constantinople. They had risked everything for the promise of new lands.
And they lost everything.
Sebeos describes the storm that destroyed the fleet:
"When they were about two stades' distance from the dry land, then one could see the awesome power of the Lord. For the Lord looked down from heaven with the violence of a fierce wind, and there arose a storm, a great tempest, and the sea was stirred up from the depths below. Its waves piled up high like the summits of very high mountains... The towers collapsed, the machines were destroyed, the ships broke up, and the host of soldiers were drowned in the depths of the sea. There remained not a single one of them."
The Egyptian survivors—those who made it back to Egypt—returned with nothing. Their ships were gone. Their comrades were drowned. Their hopes of conquest were shattered.
The land army under Muʿāwiya fled from Chalcedon by night. The reserve army in Cappadocia was defeated by the Romans. The survivors pillaged Fourth Armenia (Sophene) just to find supplies for their retreat.
Abū al-ʿIyāl al-Hudhalī, the Egyptian poet, was captured by the Romans. His poem is a cry of despair:
"After you [departed], we fought in our camp near the fields on a day that will be asked about, an inescapable, chest-oppressing affair in which souls' blood [was shed]— throughout the battle you see strong young fighters of ours falling and spurting like a waterskin's spout and older sayyids spilling their brains while others are bent double, coughing [up blood] onto spear-shafts."
And then the cruelest detail—the months of waiting:
"And now Rajab has come and gone, and the two Jumādās, and the month of Shaʿbān has come, and we thought for nine full [nights] that we counted that their army had left."
The Egyptians waited for rescue that never came. They were abandoned.
Who was responsible? The Egyptian survivors blamed their commander, Ibn Saʿd, the foster brother of the Caliph. They blamed ʿUthmān himself for appointing Ibn Saʿd and for centralizing control over Egypt. They blamed the favoritism that had put Umayyads in power while the early-comers were marginalized.
The 654 catastrophe was not an accident. In the minds of the Egyptian survivors, it was treason—or at least criminal negligence. The Caliph had sent them to die while his relatives profited in Egypt.
Part 3: The Egyptian Opposition — Who They Were and What They Lost
Hinds identifies the key figures in the Egyptian opposition who went to Medina:
| Name | Affiliation | Status |
|---|---|---|
| ʿAbd al-Raḥmān b. ʿUdays al-Balawī | Rāya (hotchpotch group) | Ṣaḥābī (early convert) |
| ʿUrwa b. Shiyaym al-Laythī | Laythī clan | Early-comer |
| Abū Shamir b. Abraha b. al-Ṣabbāḥ al-Ḥimyarī | Rāya | Became a qāriʾ in Syria |
| Kināna b. Bishr | Tujibī subclan | Lost influence due to newcomers |
| al-Ghāfiqī b. Ḥarb al-ʿAkkī | 'Akkī clan | Epitomizes original force |
| Sudān b. Ḥumrān al-Murādī | Rāya | Fought at Qādisiyyah |
| ʿAmr (or Abū ʿAmr) b. Budayl al-Khuzāʿī | Khuzāʿī | Ṣaḥābī |
| ʿAmr b. al-Ḥamiq al-Khuzāʿī | Khuzāʿī | Ṣaḥābī; former qāriʾ at Kufa |
These men were not from the tribal elite. They were early-comers of minor tribal stature whose influence had waned under ʿUthmān. They belonged to the Rāya—a hotchpotch group of splinter groups too small to be organized as individual units. Hinds notes:
"Some of them belonged to the Rāya, about which we have no further information but which must have been dominated by Qurashis after the influx of 27/647-8."
Their grievances were:
Loss of influence due to newcomers
Decline of their khitat (living spaces) in al-Fusṭāṭ
Increased central control by Ibn Saʿd
Reduced stipends (possibly)
Lack of new conquests to settle
Hinds does not mention Anatolia. But the logic is clear. The Egyptians had built the fleet for the Constantinople campaign. The Egyptians hoped that the conquest of Constantinople and Anatolia would provide them with new lands—a new frontier where they could start over:
New khitat (settlement plots)
New wealth (booty, taxes)
New status (as conquerors of the greatest city in the world)
But the storm destroyed that hope.
When the Egyptian survivors returned to Egypt, they found nothing changed. Ibn Saʿd was still governor. The newcomers were still in their khitat. The stipends were still reduced. And now they had nothing to show for their sacrifice—except humiliation.
Hinds describes the moment when open opposition emerged:
"The emergence of open Egyptian opposition to Ibn Sa'd and to 'Uthman himself is seen by the sources as beginning with the defiant refusal of Muhammad b. Abī Hudhayfa ... to acknowledge Ibn Sa'd as the leader of prayers at the beginning of the campaign of Dhat al-Ṣawārī in 34/654-5. He and Muhammad b. Abī Bakr then persisted in vilifying Ibn Sa'd and went on to foment hostility towards 'Uthman, preaching the legality of armed action against him."
The campaign of Dhat al-Ṣawārī (the Battle of the Masts) is the only event that the Arabic sources remember from 654-655. But they have forgotten the catastrophe that preceded it—the failed siege of Constantinople. The rebellion of Muhammad b. Abī Hudhayfa began at the start of that campaign, before the fleet sailed. But the rage that fueled it must have been magnified by the disaster that followed.
Part 4: The Suppressed Memory — Why the Arabic Sources Forgot
O'Sullivan notes that the Islamic historical tradition "consistently fails to record Muslim defeats in the war against the Empire." The 654 siege was the worst defeat the Caliphate had ever suffered. It was too embarrassing to record.
Petersen adds:
"Distortions appear deliberate when there were power struggles or embarrassing defeats to cover up. The Arab naval expeditions against Constantinople led to military disasters (654, 670s) that deeply affected the body politic and religious of the nascent Islamic empire. These failures set the stage for internecine conflict by creating crises of confidence in the leadership. In the Islamic sources, these disasters were successfully recast or suppressed to the extent that they were effectively forgotten."
The Egyptian survivors knew the truth. But the official historiography had no place for defeat.
The Battle of the Masts (Dhāt al-Ṣawārī) in 655 CE was a Muslim victory—a hard-fought naval battle that stopped the Roman counterattack. This battle is recorded in Arabic sources. It served as a distraction—a face-saving event that allowed the historians to gloss over the catastrophe of 654.
But the victory at the Masts did not erase the memory of the survivors. The Egyptians who had lost their comrades, their ships, and their hopes did not forget. They blamed the Caliph, and they acted.
Part 5: The Murder — The Egyptian Rage Unleashed
In Rajab 35 AH (January 656 CE), the Egyptian opposition, led by the men identified above, marched on Medina. They were joined by Kufan and Basran groups, but the Egyptians were the largest and the most determined.
Hinds notes:
"The Egyptians, who probably numbered between 400 and 600 and at most numbered no more than 1,000, formed the largest group and the most vociferous in complaint."
They demanded ʿUthmān's abdication. He refused. They besieged him in his house.
On 17 Dhū al-Ḥijjah 35 AH (17 June 656 CE), the Egyptians broke into ʿUthmān's house and killed him. Most of those who struck blows at him were Egyptians.
Hinds notes the half-verse that aptly describes them:
"They desire the passing away of the [i.e. 'Uthman's] caliphate."
But there was more to their rage than desire for power. There was trauma. There was humiliation. There was the memory of comrades drowning in the sea while Muʿāwiya's land army fled and Ibn Saʿd's newcomers took their places in al-Fusṭāṭ.
Hinds concludes that the Egyptian opposition consisted of:
"Minor old-guard leaders with their small followings, opposing the implementation of an organization which was out of their hands and was carried out by executives and clan leaders who diminished their erstwhile role and impinged upon what they regarded as their rights."
This is correct, but incomplete. The organization that the Egyptians opposed was not only the fiscal system of Ibn Saʿd. It was the centralization that had sent them to die in a pointless invasion while Umayyads profited.
The 654 catastrophe was the final straw. It was the trauma that turned discontent into rebellion. It was the proof that ʿUthmān and his governors did not care about the early-comers—that they were expendable.
The Egyptians proved otherwise.
Section VII Conclusion: The Forgotten Catalyst
The murder of Caliph ʿUthmān was not caused solely by nepotism, economic exploitation, or centralization. It was caused by a specific catastrophe—the failed siege of Constantinople in 654 CE—that the Arabic sources suppressed but the Christian sources preserved.
The Egyptian survivors of that catastrophe returned to Egypt with nothing—no land, no wealth, no glory. They had hoped that the conquest of Anatolia would provide them with a new frontier, a new home, a new future. Instead, they watched their ships sink, their comrades drown, and their hopes die.
They blamed the Caliph. And they killed him.
Martin Hinds did not know about the 654 siege. He analyzed the Egyptian opposition without this crucial piece of evidence. But the poetry of Abū al-ʿIyāl, the history of Sebeos, and more fill the gap. They reveal that the Egyptian rage was not abstract—it was specific. It was the rage of men who had been promised new lands and had been given only a storm.
The storm that saved Constantinople destroyed the Caliphate and Islam's unity forever.
Section VIII: The Echoes of Cataclysm — All Direct and Indirect Mentions of the 654 Siege
The failed siege of Constantinople in 654 CE was the greatest military disaster the early Caliphate ever suffered. It should have been recorded in every chronicle, lamented in every poem, and analyzed in every history. But it was not.
The Arabic sources — the official memory of the Islamic conquests — are almost silent. They mention a "raid" (ghazwa) to the "straits of Constantinople," but they do not describe the storm, the drowning, or the humiliating retreat. The Roman sources — which celebrated their deliverance from later sieges — are strangely quiet, because the emperor who saved the city, Constans II, was a Monothelete heretic whose memory was condemned by the Church.
Only a handful of witnesses — an Armenian bishop, a East Sryian chronicler in Mesopotamia, a Frankish chronicler in Gaul, a Chinese historian at the other end of the world, and a few cryptic lines in Arabic chronicles — preserved the memory of the cataclysm.
This section will collect every surviving reference — direct and indirect — to the 654 siege. We will analyze each source, reconstruct what it preserves, and demonstrate that Sebeos' account is not isolated but is corroborated by a chorus of witnesses from across the medieval world.
Part 1: Khalīfa ibn Khayyāṭ (d. 240/854) — The Cryptic Notice
The Text
Khalīfa ibn Khayyāṭ — one of the earliest Islamic historians — records the following under year 32 AH (652-653 CE):
"فيهَا غزا مُعَاوِيَة الْمضيق من قسطنطينية"
"In this year, Muʿāwiya raided the strait (al-maḍīq) of Constantinople."
Analysis
| Element | Significance |
|---|---|
| Date | 32 AH (652-653 CE) — one year before the main assault |
| Command | Muʿāwiya — the governor of Syria, not a minor commander |
| Location | "The strait of Constantinople" — the Bosporus, the narrow sea passage leading to the capital |
| Verb | ghazā — "he raided" — the standard term for a military expedition |
Khalīfa's notice is the only direct reference to the 654 campaign in the Arabic historical tradition — and it is stripped of all detail. No storm. No defeat. No retreat. Just the barest fact: Muʿāwiya went there.
The date (32 AH) is close to Sebeos' date of 654 CE (which would be 34 AH). The discrepancy is easily explained by by the different phases of the campaign (the initial raid vs. the main assault).
Khalīfa's notice is the smoking gun in the Arabic sources. It proves that Muʿāwiya did lead an expedition to Constantinople in the early 650s. The silence on the outcome is deliberate.
Part 2: Al-Ṭabarī (d. 310/923) — The Confirmation
The Text
Al-Ṭabarī, the greatest of the early Islamic historians, records under year 32 AH:
"وَمِنْ ذَلِكَ غَزْوَةُ مُعَاوِيَةَ بْنِ أَبِي سُفْيَانَ الْمَضِيقَ، مَضِيقَ الْقُسْطَنْطِينِيَّةِ، وَمَعَهُ زَوْجَتُهُ عَاتِكَةُ ابْنَةُ قُرْطَةَ بْنِ عَبْدِ عَمْرِو بْنِ نَوْفَلِ بْنِ عَبْدِ مَنَافٍ. وَقِيلَ: فَاخِتَةُ"
"Among the events of this year was the ghazwa of Muʿāwiya b. Abī Sufyān to the strait of Constantinople. With him was his wife ʿĀtikah (or Fākhitah) bint Qurṭah..."
Analysis
| Element | Significance |
|---|---|
| Source | Al-Ṭabarī cites al-Wāqidī (d. 207/823), a major early historian |
| Detail | Muʿāwiya's wife accompanied him |
| Omission | No outcome, no battle description, no casualties |
The mention of Muʿāwiya's wife is significant. It suggests the expedition was planned as a long-term campaign — not a quick raid. The presence of a high-status woman indicates that Muʿāwiya intended to establish a presence in the region, possibly to settle after the conquest.
But again — no outcome. The disaster is erased.
Part 3: The Khuzistan Chronicle (c. 660s CE) — The Theological Hint
The Text
The Khuzistan Chronicle, written by an East Syrian Christian in Mesopotamia in the 660s, concludes its account of the Arab conquests with a theological statement:
"ܙܟܘܬܐ ܕܝܢ ܕܒܢ̈ܝ ܐܝܫܡܥܝܠ : ܕܚܤܢܘ ܘܫܥܒܕܘ ܠܗܠܝܢ ܬܪ̈ܬܝܢ ܡܠܟܘ̈ܢ ܚܣܝ̈ܢܢܼ . ܡ̣ܢ ܐܠܗܐ ܗܘܸܬ . ܒܪܡ ܥܠ ܩܘܣܛܢܛܝܢܘܦܘܠܝܣ̣ ܠܐ ܐܫܠܛ ܐܢܘܢ ܐܠܗܐ ܥܕܟܝܠ . ܡܟܝܠ ܕܝܠܗ ܐܝܬܝܗܿ ܙܟܘܬܐ"
"The victory of the Sons of Ishmael, that they prevailed and subjugated these two mighty kingdoms, was from God. However, over Constantinople, God has not yet given them dominion. Therefore, the victory belongs to Him."
Analysis
| Element | Significance |
|---|---|
| Context | The chronicler has just summarized the conquest of Persia and Rome |
| Exception | Constantinople is singled out as not conquered |
| Tense | "Not yet" — implying that an attempt was made and failed |
O'Sullivan notes:
"The remark would be unnatural unless the Muslims had, in fact, attempted to take the Byzantine capital before the time of writing."
The chronicler wrote in the 660s. If the Arabs had never tried to take Constantinople, why mention it? The natural assumption would be that Constantinople would eventually fall, like every other Roman city. The fact that it had not yet fallen required explanation — and the chronicler provided one: God had not permitted it.
This is the earliest indirect evidence of the 654 siege outside Sebeos. The chronicler knew that the Arabs had tried and failed.
Part 4: The Old Book of Tang (945 CE, but using earlier sources) — The Chinese Witness
The Text
The Old Book of Tang (Jiu Tangshu), completed in 945 CE but drawing on Tang archival records, contains a remarkable entry under the reign of Emperor Taizong (r. 626-649 CE):
"貞觀十七年,拂菻王波多力遣使獻赤玻璃、綠金精等物,太宗降璽書答慰,賜以綾綺焉。自大食強盛,漸陵諸國,乃遣大將軍摩栧伐其都城,因約為和好,請每歲輸之金帛,遂臣屬大食焉。"
"In the 17th year of the Zhenguan era (643 CE), the king of Fulin (Rome), Boduoli (Constans II Pogonatos), sent envoys presenting red glass, green gold essence, and other items. Emperor Taizong issued a rescript in reply, consoling them, and bestowed upon them silks and satins. After the Arabs (Dashi) grew strong, they gradually encroached upon the various kingdoms. They sent the great general Moye to attack his capital city (Constantinople), whereupon they made a treaty of peace, and the Romans pleaded to pay gold and silk annually and became subjects of the Arabs."
Analysis
| Chinese Term | Middle Chinese (EMC) Reconstruction | Identification |
|---|---|---|
| 拂菻 (Fulin) | /pʰɨut ləm/ | Rome |
| 波多力 (Boduoli) | /pa ta lik/ | Pogonatos (Constans II's nickname) |
| 大食 (Dashi) | /dai ʑik/ | Arabs (Tāzīg) |
| 摩栧 (Moye) | /ma yek/ | Muʿāwiya |
Boduoli (波多力) as Pogonatos
Scholars have identified Boduoli as a transcription of Pogonatos ("the Bearded"), the nickname of Constans II. This is linguistically plausible:
| Greek | Chinese | Match |
|---|---|---|
| Pogonatos (Πωγωνᾶτος) | 波多力 (Boduoli) | Initial "Po-" matches; "-gon" becomes "-duo"; "-atos" becomes "-li" |
Moye (摩栧) as Muʿāwiya
The identification of Moye with Muʿāwiya is also phonetically excellent:
| Arabic | Chinese (EMC) | Match |
|---|---|---|
| Muʿāwiya (معاوية) | 摩栧 (Moye) | "Mu-" becomes "Mo-"; "-āwiya" becomes "-ye" |
The text states that the Arabs "attacked his capital city." This is Constantinople. The result was a treaty in which the Romans paid annual tribute. This matches Fredegar's account of the tribute payments of 1,000 gold solidi per day.
The Chinese chroniclers recorded the outcome — the tribute — but not the storm that forced the treaty. Their source likely came from Roman or Arab diplomats who emphasized the treaty and downplayed the disaster.
Part 5: Fredegar's Chronicle (c. 660 CE) — The Frankish Witness
The Text
Fredegar, writing in Gaul in the 660s, records:
"Constantinopolis tantum cum Traciana prouincia et paucis insolis, etiam et Romana prouincia emperiae dicione remanserat, nam maxeme totum emperium a Saracines graueter fuit adtritum ; etiam et in postremum emperatur Constans constrictus adque conpulsus, effectus est Saracinorum tributarius, ut uel Constantinopoles cum paucis prouincies et insolis suae dicione reseruaretur. Trebus annis circeter et fertur adhuc amplius per unumquemque diem mille soledus auri aeraries Saracinorum Constans emplebat. Tandem resumtis uiribus Constans emperium aliquantisper recoperans tributa Saracines emplendum refutat."
"Only Constantinople with the province of Thrace and a few islands, and also the Roman province [Italy], remained under the authority of the empire, for almost the entire empire had been severely worn down by the Saracens. And even in the end, the Emperor Constans, constrained and compelled, became a tributary of the Saracens, so that at least Constantinople with a few provinces and islands might be preserved under his authority. For about three years and reportedly even longer, Constans paid the Saracens a thousand gold solidi every single day. Finally, having regained his strength and recovered the empire for a while, Constans refused to pay the tribute to the Saracens any longer."
Analysis
| Element | Significance |
|---|---|
| Tribute | 1,000 gold solidi per day — 365,000 per year |
| Duration | "Three years and reportedly even longer" |
| Outcome | Constans stopped paying after regaining strength |
| Context | Fredegar describes this after the fall of Egypt and Africa |
Fredegar's account does not mention the siege — only the tribute. But the tribute is a direct consequence of the failed attack. The Romans paid to buy time. When Constans felt strong enough, he stopped paying.
The Frankish chronicler had no reason to invent this tribute. His source was likely Roman diplomats or merchants traveling through Gaul. The fact that the tribute is recorded in a western chronicle confirms that the event was widely known.
O'Sullivan notes:
"The Frankish Chronicle of Fredegar... reports, as the latest event, that 'for three years and more Constans paid 1000 gold solidi a day to the Saracens; but then he won back his empire and refused to pay tribute.' The chronicler states that he will recount how this happened but does not do so, perhaps because of his death."
The "how" — the storm — is missing from Fredegar. But the tribute is the smoking gun that proves something catastrophic happened.
Part 6: Theophanes the Confessor (c. 810 CE) — The Greek Witness
The Text
Theophanes, writing in Greek in the 9th century, preserves fragments of the Tripoli revolt and the Battle of the Masts:
"Muʿāwiya commanded that a great navy armament should be made with a view to his fleet's sailing against Constantinople. The entire preparation was being made at Tripoli in Phoenicia."
Analysis
| Element | Significance |
|---|---|
| Intent | "Sailing against Constantinople" — the goal was the capital |
| Location | Tripoli in Phoenicia — one of several naval bases |
| The Revolt | Christian prisoners burned some ships, but the fleet still sailed |
| The Battle | The Muslims won at Phoenix (655 CE) — a hard-fought victory |
Theophanes' account is confused because it has been cut — the centre of the narrative, the 654 siege, is missing. The Tripoli revolt and the Battle of Phoenix are recorded, but they do not make sense without the cataclysm in between.
O'Sullivan explains:
"If the Islamic armada had attacked Constantinople in 654/33-4, news of its destruction must have reverberated among conquered Christian populations of the Islamic State. Sebeos recorded the event: so too, surely, did the presumed Chalcedonian Syrian chronicle tradition partly preserved by Theophanes. If so, then an account of the 654 attack must have dropped out of the Chalcedonian Syrian chronicle at a later stage, leaving the adjacent notices on Tripoli and Phoenix."
The lacuna in Theophanes is not an accident. It is the result of theological censorship. Constans II, who saved Constantinople, was a Monothelete heretic. After the Sixth Ecumenical Council (680-681) condemned Monotheletism, it was necessary to show that God had punished the empire during the years of heresy. A divine rescue of Constantinople under a heretic emperor was theologically inconvenient — so it was erased.
Section VIII Conclusion: The Chorus of Witnesses
The failed siege of Constantinople in 654 CE is not a phantom event. It is preserved — directly or indirectly — in eight independent sources:
| Source | Language | Date | Type of Evidence |
|---|---|---|---|
| Khalīfa ibn Khayyāṭ | Arabic | 9th c. | Direct mention: "Muʿāwiya raided the strait of Constantinople" |
| Al-Ṭabarī | Arabic | 10th c. | Direct mention: "Muʿāwiya's ghazwa to the strait" with his wife |
| Khuzistan Chronicle | Syriac | 660s | Indirect: "God has not yet given them Constantinople" |
| Old Book of Tang | Chinese | 945 CE | Direct: "Moye attacked the capital; Romans paid tribute" |
| Fredegar's Chronicle | Latin | 660s | Indirect: "Constans paid 1,000 solidi/day for three years" |
| Theophanes | Greek | 9th c. | Indirect: Missing center; preserved Tripoli and Phoenix |
| Maronite Chronicle | Syriac | 664 CE | Indirect: Shows Anatolia still weak, city not threatened |
| Sebeos | Armenian | 660s | Direct and detailed account of the siege and storm |
The conspiracy of silence in the Arabic sources is not a conspiracy of ignorance — it is a conspiracy of suppression. The defeat was too embarrassing to record. The victory at the Battle of the Masts (Phoenix) served as a distraction, allowing later historians to ignore the cataclysm that preceded it.
But the fragments survive. They survive in the cryptic notices of Khalīfa and al-Ṭabarī, in the theological hint of the Khuzistan Chronicle, in the distant record of the Chinese Tang court, in the tribute payments recorded by Fredegar, in the confused narrative of Theophanes, and in the confident tone of the Maronite Chronicle.
And they survive in the detailed account of Sebeos — the only witness to the full story.
Sebeos is not alone. He is the last voice in a chorus — a chorus that the Arabic sources tried to silence, but could not.
The storm saved Constantinople. And the memory of that storm — preserved in Armenian, Syriac, Greek, Latin, Chinese, and even cryptic Arabic — proves that the 654 siege was real.
Conclusion: The Forgotten Cataclysm - The Storm That Saved the Queen of Cities
In the summer of 654 CE, the largest amphibious invasion force the Mediterranean had ever seen assembled off the walls of Constantinople. Five thousand ships — 300 great vessels carrying siege towers and stone-throwing machines, 5,000 light ships darting like wasps — had sailed from Alexandria, from Syria, from Palestine. The soldiers on board could see the domes and churches of the Queen of Cities. Muʿāwiya's land army, having marched across Anatolia without resistance, waited at Chalcedon. The Roman army was bottled up inside the capital. The city was doomed.
Then God intervened.
A storm — a fierce wind that roared down from heaven — rose up and shattered the fleet. The towers collapsed. The machines were destroyed. The ships broke up. The host of soldiers drowned in the depths of the sea. For six days the wind did not cease. The survivors — those who were not drowned — clung to planks, washed ashore, or fled.
Muʿāwiya left Chalcedon by night, abandoning his camp. The reserve army in Cappadocia was defeated by the Romans. The Arab forces fled to Aruastan (northern Mesopotamia), pillaging Fourth Armenia for supplies as they went. The great invasion was over.
Constantinople was saved.
The Witnesses: A Chorus Across the World
The 654 siege was forgotten by the official histories — the Arabic sources, silent on the defeat; the Greek sources, censored by the Church because Constans II was a heretic. But the memory survived in fragments — preserved by witnesses across the medieval world:
| Source | Language | Witness |
|---|---|---|
| Sebeos | Armenian | The bishop who recorded the storm and the retreat |
| Khalīfa ibn Khayyāt | Arabic | The cryptic notice: "Muʿāwiya raided the strait of Constantinople" |
| Al-Ṭabarī | Arabic | The confirmation: Muʿāwiya's wife accompanied him |
| Khuzistan Chronicle | Syriac | The theological hint: "God has not yet given them Constantinople" |
| Fredegar | Latin | The tribute: 1,000 solidi a day for three years |
| Theophanes | Greek | The confused fragments: Tripoli and Phoenix |
| Maronite Chronicle | Syriac | The confident tone: they knew the city would not fall |
| Old Book of Tang | Chinese | The distant echo: "Moye attacked the capital" |
And Abū al-ʿIyāl al-Hudhalī — the Egyptian poet who was there, who saw his comrades fall, who waited for nine nights hoping for rescue, who wrote his desperate epistle to Muʿāwiya, to ʿAmr, to Ibn Saʿd, accusing them of injustice and abandonment.
His poem is the voice of the defeated — the men who built the fleet, who sailed against the Queen of Cities, who watched it all shatter in a storm.
"After you [departed], we fought in our camp near the fields on a day that will be asked about...And now Rajab has come and gone, and the two Jumādās, and the month of Shaʿbān has come,and we thought for nine full [nights] that we counted that their army had left."
The Aftermath: The City That Would Not Fall
Constantinople would survive 799 more years.
The Arabs never took it. The Umayyads tried twice and failed. The Abbasids tried and failed. The crusaders — fellow Christians — did take the city in 1204, sacking it in an orgy of violence that shocked the world. But the Muslims could not breach its walls.
Until 29 May 1453.
On that spring morning, the Ottoman Turks, led by Sultan Mehmed II, finally broke through the walls of Constantinople. The last Roman emperor, Constantine XI Palaiologos, died fighting in the breach. The city that had been Roman for over 1,100 years became the capital of a new empire.
799 years after the first Arab fleet was shattered by a storm, Constantinople fell.
There is a poetic justice — and a tragic irony — in the fact that Constantinople fell to the Ottomans, not to the Arabs. The storm of 654 had saved the city for Christendom. But the city's time came at last.
The walls that had repelled the Umayyads, the Abbasids, and the Rus' were breached by gunpowder — by the largest cannons the world had ever seen. The technology that the Arabs could not bring to bear in 654 — the siege engines smashed by the storm — was surpassed.
Mehmed II, unlike Muʿāwiya before him, encamped at the St. Romanos Gate. He built a fortress on the Bosporus. He dragged ships over land. He did not rely on a storm.
The city fell.
The siege of 654 CE was forgotten by the official histories — but not by the poets, not by the chroniclers, not by the witnesses who lived through the cataclysm and preserved the memory in Armenian, in Syriac, in Greek, in Latin, in Chinese, and in the cryptic notices of the Arabic sources.
Sebeos recorded the storm. Abū al-ʿIyāl wept for his fallen comrades. Khalīfa and al-Ṭabarī left the cryptic clues. Fredegar recorded the tribute. Theophanes preserved the fragments. The Old Book of Tang recorded Muʿāwiya's attack from the other end of the world.
And Constantinople — the Queen of Cities — stood for eight more centuries, a testament to the storm that saved her.
The storm was not the end. It was a delay — a reprieve of 799 years.
Works Cited
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