Explores the mechanisms of military intervention and its consequences. The contributors examine a succession of coups, attempted coups, and established military regimes, with a view to evaluate the role of the military as a ruling group and an organization fostering political development. These studies cast strong doubt on the abilities of the military as a modernizing and stabilizing agent, raising important questions about our policies on military assistance and arms sales. Bienen makes an especially strong plea for a reassessment of our military and economic-political policies in order to determine whether both are working toward the same goals.