Battle of Silva Litana the Romans postponed military operations against the Gauls until the conclusion of the Second Punic War. In 216 BC, the Romans elected Lucius Aemilius Paullus and Gaius Terentius Varro as consuls. The consuls gave a legion to Lucius Postumius Albinus to punish the Gallic tribes in Cisalpine Gaul that had supplied troops to Hannibal's Carthaginian army. After Hannibal's crushing victory at the Battle of Cannae, Postumius was elected Roman consul for the third time and "in absentia", since he was in command of the Roman legion in Cisalpine Gaul. Postumius' army strength was increased to two Roman legions and he
Early Middle Ages had broken down, and the Roman army comprised mainly barbarians and soldiers recruited for a single campaign. The general decline in discipline also led to the use of smaller shields and lighter weaponry. Not wanting to share the glory, Eastern Emperor Valens ordered an attack on the Therving infantry under Fritigern without waiting for Western Emperor Gratian, who was on the way with reinforcements. While the Romans were fully engaged, the Greuthung cavalry arrived. Only one-third of the Roman army managed to escape. This represented the most shattering defeat that the Romans had suffered since the Battle of Cannae (216