In this new edition of National Security in a New Era, renowned security scholar Donald M. Snow continues to provide the most up-to-date and comprehensive analysis of the United States’ national security situation and the security policies the U.S. adopts. This text examines national security from two fundamental fault lines–the end of the Cold War and the 9/11 terrorist attacks–and considers how the resulting era of globalization and geopolitics guides policy. Placing this trend in conceptual and historical context and following it through military, semi-military, and non-military concerns, National Security in a New Era treats its subject as a nuanced and subtle phenomenon that encompasses everything from the nation to the individual.