presents the philosophical and conceptual foundations of military ethics, offering an excellent foundation for exploration and discussion of these issues. It focuses first on the 2,500-year legacy of the "just war theory" and its application through history. It then moves to the application of that tradition in the modern era, showing how acts of terrorism by nonstate participants require a new theory and way of thinking about when and how armed force can be justifiably employed. Further, the author analyzes how new theories might alter the fundamental identity of traditional defensive military forces. The book also addresses peacetime ethical issues, such as gender integration and the role of religion in the military. The book is essential reading for military officers and students, as well as those policymakers who confront decisions about how to deploy military force during the War on Terror.