For the Romans, there was an intimate relationship between war and peace, and Mars, the god of war, had another aspect, Mars Pacifer, Mars the bringer of Peace, who is shown on coins of the later Roman Empire bearing an olive branch. Appian describes the use of the olive-branch as a gesture of peace by the enemies of the Roman general Scipio Aemilianus in the Numantine War and by Hasdrubal the Boeotarch of Carthage.