Each chapter discusses a different time period, exploring the significant developments that changed military thought during that period and how military operations were influenced by strategic design, tactical capability, and available technology. "Issues in Military History" sections in each chapter analyze important controversies and debates in American military history, like the role of race in the Mexican War, whether the American contribution in World War I was decisive, and the dropping of the atomic bomb. In Harm's Way covers political and diplomatic challenges, social and economic changes, philosophical and ideological debates, and technological advances, but--above all--it focuses on the experiences of the American people at war.