 On 21 July, the imperial army came into view of the Arab force, and encamped on the hill of Anzen south of Dazimon.In the ensuing Battle of Anzen, the Byzantine army attacked at dawn, and initially made good progress, but noon Afshin launched his Turkish horse-archers in a ferocious counter-attack which stymied the Byzantine advance and allowed the Arab forces to regroup.At the same time, Theophilos decided to lead reinforcements to one of his wings, and his sudden absence disquieted his troops, thinking he had been killed.