A Khazar army led Conquering by Barjik , the son of the Khazar khagan , invaded Attack the Umayyad provinces of Jibal and Adharybaydjian in retaliation for Caliphate attacks Attack on Khazaria during the course of the decades-long Khazar-Arab War of the early 8th century .

A Khazar army led Conquering by Barjik , the son of the Khazar khagan , invaded Attack the Umayyad provinces of Jibal and Adharybaydjian in retaliation for Caliphate attacks Attack on Khazaria during the course of the decades-long Khazar-Arab War of the early 8th century .

Barjik 's expedition into northern Iran ( and later into Kurdistan and northern Mesopotamia ) may have been an attempt to establish Creating Khazar rule south of the Caucasus Mountains .

The Khazar army at Mosul was defeated Conquering and withdrew Escaping north of the Caucasus Mountains .