Ares is the god of war, one of the Twelve Olympian gods and the son of Zeus and Hera. In literature Ares represents the violent and physical untamed aspect of war, which is in contrast to Athena who represents military strategy and generalship.
Although Ares embodied the physical aggression necessary for success in war, the Greeks were ambivalent toward him because he was a dangerous, overwhelming force that was insatiable in battle.