Battle of Cannae

Battle context

The Battle of Cannae was one of the most consequential engagements of the Second Punic War. A Carthaginian force of roughly 50,000 under Hannibal encircled and effectively destroyed a Roman and Italian army nearly twice its size, inflicting between 67,500 and 80,000 Roman casualties against Carthaginian losses of fewer than 8,000. The scale of the annihilation represented one of the worst defeats in Roman history and demonstrated that Carthaginian forces could operate deep inside the Italian peninsula and defeat Rome's largest field armies. The battle cemented Hannibal's standing as a commanding general and established Cannae as a benchmark of encirclement warfare studied across subsequent centuries. Within the Second Punic War, the destruction of so large a Roman force — commanded by consuls Lucius Aemilius Paullus and Gaius Terentius Varro — forced Rome to reckon with the limits of its standard military approach and compelled a strategic reorientation in how it engaged Carthaginian forces in subsequent campaigns.