Invasion of Gaul by Attila - Gibbon's Decline and Fall of the Roman Empire Chapter 35 Part 2

The invasion of Gaul by the forces of Attila the Hun is one of the great turning points in history, and although he was repulsed really marks the last major event in the history of the western half of the Roman Empire.  This was the last time the Romans would defeat barbarians in a large set piece battle.