The Zutt, originally from the Indus Valley region, had established dominance over the marshlands between Wasit and Basra.
[3][4] The Zutt were a Jat tribe of lower Indus Valley (Pakistan) origin who migrated to Iraq and initially served as mercenaries under the Umayyads and Abbasids.
Over time, they gained control over the marshlands between Wasit and Basra, using the region as a base for raids.
[6][7] The capture of Wasit by the Zutts had significant long-term consequences for the region and the Abbasid Caliphate.
The Abbasids, while initially caught off guard by the speed and effectiveness of the Zutt offensive, eventually responded with efforts to reclaim the lost territories.