Mars

Ancient Roman god of war and protector of Rome, second only to Jupiter in importance. His festivals occurred in the spring (March) and fall (October). Until the time of Augustus, Mars had only two temples in Rome. His sacred spears were kept in a sanctuary; on the outbreak of war, the consul had to shake the spears, saying “Mars vigila!” (“Mars, awake!”) Under Augustus, Mars became not only the guardian of Rome in its military affairs but the emperor's personal guardian. He was identified with the Greek god Ares.