Archaeological studies indicate that human beings have killed each other during all the period of time that they have been on earth History tells us that wars have been waged for is long is records run. This penchant of human beings for conflict whether as individuals as members of social groups or as citizens of the communities which we call nations has been variously explained. Some have characterized conflict as a basic human instinct while others have extolled combat—and especially war— as ennobling the individual ind purifying the race. In more pragmatic terms war his been waged for territorial and economic gains and has been justified in terms of its contribution to the growth of peoples and the development of states.