The Arevaci were a Celtic people who resided in northern Hispania and most of Celtiberia from the 4th to 2nd centuries BC. They were an offshot of the Vaccaei, and their name means "Eastern Vaccaei". During the Punic Wars, Arevaci mercenaries fought for both the Roman Republic and Carthage, and the first Roman incursion into the Arevaci heartland occurred in 195 BC. On the fall of Numantia in 133 BC, the Romans disbanded the Celtiberian confederacy, and Rome ruthlessly crushed the Arevaci in 92 BC and destroyed their new capital of Termantia. The Arevaci resisted Roman assimilation for decades, but they contributed cavalry auxiliaries to the Romans in 29 BC.