The Abbasids had launched Process_start a huge expedition Attack with two separate armies in retaliation for the Byzantine emperor Theophilos 's successes the previous year , and aimed Aiming to sack Destroying Amorion , one of Byzantium 's largest cities .

The defeat opened Process_start the way for the brutal sack Destroying of Amorion a few weeks later , one of the most serious blows Byzantium suffered Bodily_harm in the centuries-long Arab–Byzantine Wars Attack .