This book offers a thorough and accessible analysis of Catholic teaching on war and warmaking from its earliest stages to the present. Moral theologians Thomas Massaro and Thomas A. Shannon begin with a survey of the teachings on war in various religions and denominations and then trace the development of Just War theory and application, review the perspective of several Catholic bishops, comment on the bishops' pastoral letter The Challenge of Peace, address contemporary developments in light of 9-11 and the United States war with Iraq, and conclude with theological reflections. Complete with recommended readings, Catholic Perspectives on Peace and War offers an informative and thoughtful moral analysis that helps readers navigate the rapidly changing terrain of war, warmaking, and peace initiatives.