Before revision: A cold war is a state of conflict between nations that does not involve direct military action but is pursued primarily through economic and political actions, propaganda, acts of espionage, proxy wars, or economic wars.
After revision: The Cold War was not even a real war, but, cold war is a state of conflict between nations that does not involve direct military action but is pursued primarily through economic and political actions, propaganda, acts of espionage, proxy wars, or economic wars.