Studying a serie of vases manufactured in the Magna Grecia during the IVth century BC, we tried to understand the development and the evolution of Pan's iconography on red-figured apulian vases, especially in war and hunting scenes. Bestiality strongly characterizes the goat-looking god and makes him perfectly adapted to the wild spaces of hunting; he is even perceived as an embodiment of nature, his animality being the expression of irrational forces threatening the integrity of man, of the group and of the polis. Object of terror for the human beings, especially when he is identified with panic, he can also charm the gods and be accepted amongst them. His entering the Pantheon means that he is capable of the most beneficial action: terrifying the enemies. Taming Pan is, above all, a victory of man on himself, on his own fears. This is the meaning of the consecration to the goat-looking god performed by the hunting man. Gaining Pan's help allows victory on the Other, the enemy, the Barbarian. He is the god Athenians have thanked after the victory of Marathon.