This new Handbook gathers together state-of-the-art theoretical reflection and empirical research by a group of leading international scholars in the subdiscipline of Critical Security Studies. In today’s globalised setting, the challenge of maintaining security is no longer limited to the traditional foreign-policy and military tools of the nation-state, and security and insecurity are no longer considered as dependent only upon geopolitics and military strength, but rather are also seen to depend upon social, economic, environmental, ethical models of analysis and tools of action. The contributors discuss and evaluate this fundamental shift in four key areas: I. New security concepts II. New security subjects III. New security objects IV. New security practices Offering a comprehensive theoretical and empirical overview of this evolving field, this book will be essential reading for all students of critical security studies, human security, international/global security, political theory and IR in general. J. Peter Burgess is Research Professor at PRIO, the International Peace Research Institute, Oslo, where he leads the Security Programme and edits the interdisciplinary journal Security Dialogue. In addition, he is Adjunct Professor at the Norwegian University of Science and Technology, Trondheim (NTNU), and Research Fellow at the Institute for European Studies, Brussels.