Abstract
Throughout the whole existence of their Empire, the Romans used the divide et impera polity against the European barbarians. The Romans tried to prevent the establishment of larger and more powerful political entities which could endanger them.
Simultaneously, they supported rivalry amongst the tribal chieftains and provided the friendly ones with gold and goods. The arrival of the Huns into Europe did not initially bring any change to this international system.
Since the 420s the Huns unified their own tribe and created close alliances with other tribes in Central and Eastern Europe. This alliance had at last the military power to clash with the Romans and disrupt Roman international order across Europe.
Because the Hunnic military power was not sufficient, their state was more a tribal confederacy than a hierarchical and tightly controlled empire. The Hunnic Empire was also a short-termed affair limited to Attila's life