Detailed Pedia

Battle of the Zab

(Learn how and when to remove this template message)
Battle of the Zab
Part of the Abbasid Revolution
Zab rivers.PNG
Greater Zab River Map in Iraq
DateJanuary 25, 750
near the Great Zab
Result Abbasid victory
Collapse of the Umayyad Caliphate in Damascus
Establishment of the Abbasid Caliphate
Abbasid Caliphate Umayyad Caliphate
Commanders and leaders
Abu Muslim
Abd Allah ibn Ali
Abu Awn
Marwan II (WIA)[citation needed]
around 40.000[citation needed] around 120,000

The Battle of the Zab (Arabic: معركة الزاب), also referred to in scholarly contexts as Battle of the Great Zāb River, took place on January 25, 750, on the banks of the Great Zab River in what is now the modern country of Iraq. It spelled the end of the Umayyad Caliphate and the rise of the Abbasids, a dynasty that would last from 750 to 1258.


In 747, a major rebellion broke out against the Umayyad Caliphate, which ruled which ruled southern Gaul to the western periphery of China from 661 to 750. The principal cause of the rebellion was the increasing gap between the outlying peoples of the Caliphate and the Damascus-based Umayyad government. The Umayyad-appointed governors of the Caliphate's various provinces were corrupt and interested only with personal gains. Additionally, the Umayyads claimed no direct descent from Muhammad, while the Abbasids did (they descended from Muhammad's uncle Abbas—a fact the latter used greatly during the revolution).

The armies

In 750, the army of the Umayyad caliph Marwan II fought a combined force of Abbasid, Shia, Khawarij, and Iraqi forces. Marwan's army was, on paper at least, far larger and more formidable than that of his opponents, as it contained many veterans of earlier Umayyad campaigns against the Byzantine Empire; its support for the caliph, however, was only lukewarm. The morale of the Umayyads had been damaged by the series of defeats inflicted earlier in the rebellion, while the morale of the Abbasid armies had increased.

The battle

The Abbasid army formed a spear wall, a tactic they had adopted from their Umayyad opponents, presumably from witnessing it in earlier battles. This entailed standing in a battle line with their lances pointed at the enemy (similar to the stakes used by English longbowmen at Agincourt and Crécy many centuries later). The Umayyad cavalry charged, possibly believing that with their experience they could break the spear wall. This was a mistake on their part, however, and they were all but butchered. The Umayyad army fell into retreat, its morale finally shattered. Many were cut down by the zealous Abbasids or were drowned in the wintertime River Zab.


Marwan II himself escaped the battlefield and fled down the Levant, pursued relentlessly by the Abbasids, who met no serious resistance from the Syrians because the land had recently been laid waste by an earthquake and pestilence. Marwan fled at last to Abusir/Busir, which is a small town on the Egyptian Nile delta. It was there, a few months after the battle, that he was at last killed in a short battle and replaced as caliph by Saffah (r. 750–754), bringing to an end Umayyad rule in the Middle East.

See also

  • Battle of Talas was a military engagement between the Abbasid Caliphate against the Chinese Tang dynasty in July 751 AD.

This page was last updated at 2022-11-16 13:39 UTC. Update now. View original page.

All our content comes from Wikipedia and under the Creative Commons Attribution-ShareAlike License.