Is war necessary? In Peace and War prominent anthropologists and other social scientists explore the cultural and social factors leading to war. They analyze the covert causes of war from a cross-cultural perspective: ideologies that dispose people to war; underlying patterns of social relationships that help institutionalize war; and the cultural systems of military establishments. Overt causes of war--environmental factors like the control of scarce resources, advantageous territories, and technologies, or promoting the wel-fare of people "like" oneself--are also considered. The authors examine anthropologists' role in policy formation--how their theories on the nature of culture and society help those who deal with global problems on a day-to-day basis. They argue that both covert and overt mechanisms are pushing the world closer to a devastating war and offer strategies to weaken the effects of these mechanisms. This anthropological and historical analysis of the causes of war is a valuable resource for those studying war and those trying to understand the place of social science in framing pacific options. sis of the causes of war is a valuable resource for those studying war and those trying to understand the place of social science in framing pacific options.