Yazid III’s successful coup against Walid II blew up the tribal feud. Syrian unity had long undergirded Umayyad power in Syria and from there, the entire caliphate; it had now been torn asunder in bloody warfare. Even when the clan finally had someone strong enough to make a play at stabilizing the situation, the caliphate was far too weak, a mere shadow of its former self, its armies comprised entirely of men animated by tribal loyalties.