Disaster at Arausio
Rome's worst defeat since Cannae
On the banks of the Rhone in southern Gaul, migrating Germanic and Celtic tribes annihilated a Roman army in one of the republic's most catastrophic defeats. The Battle of Arausio exposed Rome's vulnerability to the Cimbri and Teutones, threatening Italy itself. The disaster catalyzed military reforms under Gaius Marius that would reshape the Roman legions forever.
