Barjik led the Khazar armies in the Khazar-Arab wars of the early 700s.
The Khazar army endures a series of defeats.
Filaq meets with tarkhan of the Khazar army in disguise as her brother Alp, who died in captivity.
According to some sources, Seljuk began his career as an officer in the Khazar army.
Despite their success, the Arabs had not yet defeated the Khazar army, and they retreated south of the Caucasus.
Despite their success, however, the Arabs had not yet defeated the Khazar army, which like all nomad forces was not dependent on cities for supplies.
Near Bajarwan Sa'id came upon a 10,000-strong Khazar army, which he defeated, killing most of the Khazars, and rescuing the prisoners they had with them.
He describes leading Khazar armies which seems to imply the role of the Bek.
The Khazar army at Mosul was defeated and withdrew north of the Caucasus Mountains.
According to the Georgian sources, Bulchan led the Khazar army in its capture of Tbilisi.