In 406 BC, Rome declared war against the rival Etrurian city of Veii. The city of Veii was powerful and was located on a well-fortified and elevated site. This required the Romans to commence a siege lasting several years. In 401 BC, as the war started to grow increasingly unpopular in Rome, Camillus was appointed consular tribune. He assumed command of the Roman army, and within a short time he stormed two allies of Veii, Falerii and Capena, which resisted behind their walls. In 398 BC, Camillus received consular tribune powers and then looted Capena.