The siege of Capua was fought in 211 BC, when the Romans besieged Capua. It is described by Polybius at 9.4-7, by Livy at 26.4-6, and by Appian at 37-44 of his Hannibalic War. Background The defection of Capua to Hannibal after the Battle of Cannae in 216 BC was perhaps the most significant of his gains at the expense of the Roman alliance in Italy. As Livy put it, "a city of such renown, and such power, had draw a number of different peoples with her when she defected". Its recapture was thus a Roman priority, and a key conflict zone for Hannibal's war. Operations 215–211 BC Hannibal had made Capua his winter quarter in 215 BC, and had conducted his campaigns against Nola and Casilinum from there. The Romans had attempted to march on Capua several times since its defection but were thwarted by the return of Hannibal's army rushing to its defence. 212 BC saw them investing the city for a siege, undeterred by the loss of some 16,000 men to Hannibal at the Battle of Herdonia. The siege continued into 211 BC, while Hannibal was busy in the south of Italia, the Romans employing innovative use of light-armed troops (velites) to ward off forays by the Capuan cavalry. Hannibal attempted to relieve Capua by breaking through the Roman siege-lines; and when this failed, he tried to break the siege by marching on Rome itself, hoping that the threat would force the Roman army to break off the siege and march back to Rome to defend it. Once the Roman army was in the open, he would then turn to engage it in a pitched battle and defeat them once again, freeing Capua from the threat. However, Hannibal found the defences of Rome too formidable for an assault and as he had only planned this movement as a feint, he lacked both the supplies and equipment for a siege. The Roman besiegers of Capua, knowing this, ignored his march on Rome and refused to break off their siege, though Livy reports that a select relief force did march from Capua to Rome. His feint having failed, Hannibal was forced to retreat south and Capua unrelieved fell to the Romans shortly afterwards. Implications In the aftermath Capua was severely punished by Rome: its magistrates and communal organization were abolished, and, while foreigners, freedmen and craftsmen remained intact, the