A Theology and Religious paper with the following introduction: Warfare is a major aspect of social life in some tribal societies. Socialization of boys is devoted to the development of future fighters. One such group is the Yanomamo of Brazil and Venezuela. They spend a significant amount of time and energy preparing for war. They fight to punish other groups or attack them to capture women. They may also engage in warfare to defend other groups from being attacked by their enemies. Fighting takes a heavy toll. Warfare is the largest single cause of death among men, and it accounts for forty percent of male mortality (Gross, 1975). This essay compares and contrasts and contrast the different styles used by Kenneth Good and David Chagnon, authors of “Into The Heart…” and Napoleon Chagnon, the author of The Fierce People.