 As a result, Armenia was annexed into the Caliphate along with the principalities of Caucasian Albania and Iberia as the province of Arminiya.Meanwhile, in North Africa, a Byzantine–Berber alliance had reconquered Ifriqiya and slain its governor, Uqba ibn Nafi, in the Battle of Vescera in 682.Abd al-Malik charged Uqba's deputy, Zuhayr ibn Qays, to reassert the Arab position in 688, but after initial gains, including the slaying of the Berber ruler Kasila at the Battle of Mams, Zuhayr was driven back to Barqa (Cyrenaica) by Kasila's partisans and slain by Byzantine naval raiders.