Barbarian Warlord
In Rome, they call all of us who aren't Romans or greeks "Barbarians", aliens, or, if we're on their side, foederati.
Attila became a Foederati soon after returning home. Attila proved a skilled knowledge of Goth, Hunnic, Roman and Scythian battle tactics, and put each in good use whenever one was late in paying their tribute monies.
Attila took the alliance of pledged states behind the horde and expanded it to a force of tens to hundreds of thousands.
There was a minor squabble between Attila and his brother Bleda which threatened to divide the Huns. Bleda has been dealt with, and won't be a problem anymore.