Battle of Arausio: The Cimbri inflict the heaviest defeat on the Roman army of Gnaeus Mallius Maximus.
The Battle of Arausio took place on 6 October 105 BC, at a site between the town of Arausio (now Orange, Vaucluse), and the Rhône River. Ranged against the migratory tribes of the Cimbri under Boiorix and the Teutoni under Teutobod were two Roman armies, commanded by the proconsul Quintus Servilius Caepio and consul Gnaeus Mallius Maximus. However, bitter differences between the commanders prevented the Roman armies from co-operating, with devastating results. The terrible defeat gave Gaius Marius the opportunity to come to the fore and make radical reforms to the organisation and the recruitment of Roman legions. Roman losses are described as being up to 80,000 troops as well as another 40,000 auxiliary troops (allies) and servants and camp followers, virtually all of their participants in the battle. In terms of losses, the battle is regarded as one of the worst defeats in the history of ancient Rome.