Commemorating Morton Deutsch's 95th birthday, this book presents ten major texts by this highly respected social psychologist on war and peace. This first volume presents Deutsch in his role as a leading social science activist on issues of war and peace – writing papers, making speeches and participating in demonstrations. After serving in the U.S. Air Force during World War II and being awarded two Distinguished Flying Cross medals, as a psychologist he was determined to work for a more peaceful world. Influenced by Kurt Lewin, who believed that nothing was as practical as a good theory, Deutsch pursued theoretical work on such issues as cooperation-competition, conflict resolution and social justice with regard to issues of war and peace. As President of the Society for the Study of Peace, Conflict and Violence, the Society for the Psychological Study of Social Issues and the International Society of Political Psychology, he helped to foster social science efforts to make for a more peaceful world.