the battle, the Helvetii failed to negotiate a peaceable agreement permitting their travel and resumed their migration west to Gaul. As a result, Caesar quickly bridged the river Arar and pursued the Helvetii for over two weeks until he was forced to divert his army to the city of Bibracte to replenish provisions. As Caesar's army traveled to Bibracte, the Helvetii tried to take advantage of the situation and attack Caesar's legions while they were in transit. In their effort to destroy the Roman legions, the Helvetii were unsuccessful in the battle that took place and suffered a major defeat. The Helvetii that Caesar defeated were part of the pagus (sub-tribe) of the Tigurini which in 107 BC had slain the Consul Lucius Cassius Longinus, as well as the legate Lucius Calpurnius Piso, the grandfather of the Lucius Calpurnius Piso who was the father-in-law of Caesar. References External links "De Bello Gallico" and Other Commentaries at Project Gutenberg. Battles of the Gallic Wars Helvetii Battles of Julius Caesar 58 BC