The radically new homeland security, military, and legal strategies developed by the United States in the months following the terrorists attacks on the World Trade Center and Pentagon are given comprehensive treatment in this book by a former senior Pentagon official, combat veteran, and criminal prosecutor. Stephen M. Duncan draws on a lifetime of military and legal experience to examine the many questions relating to the role of the armed forces in homeland security, including elements of constitutional and criminal law, foreign policy, tradition and custom, federal-state and inter-agency relations, and politics, as well as military strategy and operations.