Battle of Cannae search of him. After two days' march, they found him on the left bank of the river Aufidus, and encamped away. Varro, in command on the first day, is presented by contemporary sources as a man of reckless nature and hubris, who was determined to defeat Hannibal. While the Romans were approaching Cannae, some of Hannibal's light infantry and cavalry ambushed them. Varro repelled the attack and continued slowly on his way to Cannae. This victory, though essentially a mere skirmish with no lasting strategic value, greatly bolstered the confidence of the Roman army, perhaps leading to overconfidence on Varro's
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