Peter Hough is Professor of International Relations at Middlesex University London, UK, and author of Understanding Global Security (2023) and Environmental Security (2022).

Andrew Moran is Professor of Politics and International Relations at London Metropolitan University, UK, and has published widely on US politics and foreign policy.

Bruce Pilbeam is Senior Lecturer in Politics and International Relations at London Metropolitan University, UK, and author of Conservatism in Crisis? (2003).

SECTION I: Conceptual and Theoretical 1 Framing a Discipline2 The Traditional Routes to Security: Realism and Liberalism 3 Challenging Orthodoxy: Critical Security Studies4 Feminist Security Studies5 Human Security6 Constructing Security7 Reflecting on War and Peace8 New Wars, Globalisation and Failed States9 Nuclear Proliferation10 The International Arms Trade in Conventional Weapons11 Terrorism12 Religion and International Conflict13 Intelligence and Security14 The Rise of Private Military and Security Companies15 Environmental Security16 Crime and Security17 The Securitization of the LGBTQ+ Community18 Food Security19 Pandemics and Security20 Disasters and Security21 Migration and Security22 Cybersecurity23 The United Nations and Collective Security24 NATO and Security Alliance Theory25 Regional Security Organisations26 The United States: Seeking Security in an Age of Upheaval27 Russia, the Black Sea Region and Security after the Invasion of Ukraine28 China and Comprehensive Security29 Security in Europe: The Triumph of Institution-Building?30 The Horn of Africa and Great Power Rivalry31 The Arctic32 The Middle East and Security33 Korea34 Security Perspectives on Latin America35 Space and Security36 Conclusion: Where to Next?