The Oxford English Dictionary defines "war" as: (1) A state of armed conflict between different countries or different groups within a country; (2) a state of competition or hostility between different people or groups, or (3) a sustained campaign against an undesirable situation or activity. There are many possible reasons for war to begin between—or more often, within—nations. Among these are economic gain, territorial gain, religion, nationalism, civil war, and political revolution. Of...
