Hawk : a person who advocates an aggressive or warlike policy, especially in foreign affairs.Conciliation : the action of stopping someone being angry; placation.Dove : a person who advocates peaceful or conciliatory policies, especially in foreign affairs.Pacifist : a person who believes that war and violence are unjustifiable.Pigeon : a gullible person, especially someone swindled in gambling or the victim of a confidence trick.Antonym of Hawk is Dove