Hannibal
It is estimated that 50,000-70,000 Romans were killed or captured at Cannae. Among the dead were 80 senators. The Roman Senate was no more than 300 men: 25%–30% of the governing body. The Battle of Cannae one of the worst defeats in the history of Ancient Rome. It is also one of the bloodiest battles in all of human history in terms of the number of lives lost in a single day. After Cannae, the Romans refused to fight Hannibal in battles but tried instead to defeat him by wearing him down. They relied on their advantages of supply and manpower.