CONTENTS: Foreword Transformation and Professional Military Education: Past as Prologue to the Future Balancing Tyche: Nonlinearity and Joint Operations The Best Offense Is a Good Defense: Preemption, Its Ramifications for the Department of Defense U. S. Army Europe 2010: Harnessing the Potential of NATO Enlargement Creating Strategic Agility in Northeast Asia The War in Afghanistan: A Strategic Analysis Adaptability: A New Principle of War Direct and Indirect Fires in the 21st Century Maritime Prepositioning: Yesterday, Today, and Tomorrow Homeland Security: The Department of Defense, The Department of Homeland Security, and Critical Vulnerabilities Integrated Emergency Management: The Roles of Federal, State, and Local Government with Implications for Homeland Security Is There Space for the Objective Force? Expanding Nuclear Arms Control: DoD Imperatives in the Aftermath of September 11, 2001 About the Authors | National Security Challenges for the 21st Century by Williamson Murray, Paperback | Indigo Chapters