We cannot look to "human nature" for explanations of war, although people everywhere fight at times. At other times they enjoy long periods of peace. "Primitive" people are no more warlike than "civilized" people and usually fight wars over what to them are good reasons. Nobody, however remote, is isolated from the global system, and modern warfare must be analyzed at that level, particularly because one can predict that future wars will be fought by guerrilla movements against the state from within, and with transnational populations challenging the authority of the state. Peace must be constructed within a complex web of interdependency and other relationships: Peace is something more substantial than merely the absence of war.