The Battle of Veii, also known as the Siege of Veii, was a battle involving ancient Rome, approximately dated at 396 BC. The main source about it is Livy's Ab Urbe Condita. The Battle of Veii was the final battle between the Romans, who were led by Marcus Furius Camillus, who had been elected dictator, and the Etruscan city of Veii. Veii had resisted the Romans in a long and inconclusive war with victories and defeats on both sides. The Romans besieged Veii and dug a tunnel beneath the city. Camillus attacked the city on all sides so as to distract the Veientines. The Romans then emerged from the tunnel and their forces quickly overwhelmed Veii.