The Battle of the Catalaunian Plains (or Fields), also called the Battle of Châlons (also spelled Chalons or Chalon) or Battle of the Campus Mauriacus, took place in 451 between a coalition led by the Roman general Flavius Aetius and the Visigothic king Theodoric I on one side and the Huns and their allies commanded by Attila on the other. It was one of the last major military operations of the Western Roman Empire and marks the apex of the career of Flavius Aetius.

In which battle did the romans defeat the huns in 451?

The Battle of Catalaunian Plains

The Roman Empire