information:extraction
Arrival in Europe

In 557, the Avars sent an embassy to Constantinople, presumably from the northern Caucasus. This marked their first contact with the Byzantine Empire. In exchange for gold, they agreed to subjugate the "unruly gentes " on behalf of the Byzantines: subsequently they conquered and incorporated various nomadic tribes — Kutrigurs and Sabirs — and defeated the Antes.

Pohl 1998, p. 18: the first thing the Avars did when they came near the Caucasus on their flight from Central Asia was to send an embassy to the aging emperor Justinian. That took place sometime in winter 558/59, and they struck the usual deal: the Avars were to fight for the Empire against unruly gentes and in turn would receive annual payments and other benefits. Indeed, for 20 years to come the Avars, under their Khagan Baian, fought Utigurs and Antes, Gepids and Slavs, whereas their policy towards the Empire relied more on negotiation than on war."

By 562 the Avars controlled the lower Danube basin and the steppes north of the Black Sea. By the time they arrived in the Balkans, the Avars formed a heterogeneous group of about 20,000 horsemen. After the Byzantine Emperor Justinian I bought them off, they pushed northwestwards into Germania. However, Frankish opposition halted the Avars' expansion in that direction. Seeking rich pastoral lands, the Avars initially demanded land south of the Danube in present-day Bulgaria, but the Byzantines refused, using their contacts with the Göktürks as a threat against Avar aggression. The Avars turned their attention to the Carpathian Basin and to the natural defenses it afforded. The Carpathian Basin was occupied by the Gepids. In 567 the Avars formed an alliance with the Lombards — enemies of the Gepids — and together they destroyed much of the Gepid kingdom. The Avars then persuaded the Lombards to move into northern Italy, an invasion that marked the last Germanic mass-movement in the Migration Period.

Continuing their successful policy of turning the various barbarians against each other, the Byzantines persuaded the Avars to attack the Sclavenes in Scythia Minor, a land rich with goods. After devastating much of the Sclavenes' land, the Avars returned to Pannonia after many of the khagan's subjects deserted to the Byzantine emperor.