[snip] The Avars were a confederation of heterogeneous (diverse or varied) people consisting of Rouran, Hephthalites, and Turkic-Oghuric races who migrated to the region of the Pontic Grass Steppe (an area corresponding to modern-day Ukraine, Russia, Kazakhstan) from Central Asia after the fall of the Asiatic Rouran Empire in 552 CE. They are considered by many historians to be the successors of the Huns in their way of life and, especially, mounted warfare. They settled in the Huns’ former territory and almost instantly set upon a course of conquest. After they were hired by the Byzantine Empire to subdue other tribes, their king Bayan I (reigned 562/565-602 CE) allied with the Lombards under Alboin (reigned 560-572 CE) to defeat the Gepids of Pannonia and then took over the region, forcing the Lombards to migrate to Italy.
The Avars eventually succeeded in establishing the Avar Khaganate, which encompassed a territory corresponding roughly to modern-day Austria, Hungary, Romania, Serbia, Bulgaria down to and including parts of Turkey. The departure of the Lombards for Italy in 568 CE removed another hostile people from Pannonia, enabling Bayan I to expand his territories with relative ease and found the empire which lasted until 796 CE, when the Avars were conquered by the Franks under Charlemagne. [/snip]
Hephthalites sound like they should be one of the Canaanite tribes Joshua fought against.