The Cimbrian War was a major conflict between the Roman Republic and a confederation of Germanic and Celtic tribes, including the Cimbri, Teutons, Ambrones, and Tigurini. These tribes migrated from the Jutland peninsula into Roman-controlled territories, leading to a series of intense military clashes.
This war was historically significant as it represented the first time since the Second Punic War that the Italian peninsula and the city of Rome faced a direct and serious existential threat. The conflict marked the beginning of a long history of Roman confrontations with Germanic peoples that would persist for several centuries.