The Arab–Byzantine wars Hostile_encounter were a series of wars Hostile_encounter between the mostly Arab Muslims and the Byzantine Empire between the 7th and 11th centuries AD , started Process_start during the initial Muslim conquests under the expansionist Rashidun and Umayyad caliphs in the 7th century and continued by their successors until the mid-11th century .

Coming to power three decades after the death of the Muslim prophet Muhammad and immediately after the Rashidun Caliphate , the Umayyads were a feudal Arab empire ruling Control over a population which was overwhelmingly non-Arab as well as primarily non-Muslim .

Riding from the steppes of Central Asia , the Seljuq replicated tactics practiced Practice by the Huns hundreds of years earlier against a similar Roman opponent but now combining Cause_to_amalgamate it with new-found Islamic zeal ; in many ways Action , the Seljuq resumed Process_start the conquests Conquering of the Muslims in the Byzantine–Arab Wars initiated Process_start by the Rashidun , Umayyad and Abassid Caliphate in the Levant , North Africa and Asia Minor .