The fifth edition of this bestselling textbook offers a comprehensive and engaging introduction to International relations and has been fully updated to cover the dramatic changes in recent world politics. Written in the author's unique and engaging style, the text explores everything from foreign policy and security to global governance and the global economy, to show how the theories and concepts Brown outlines are the only way to make sense of contemporary issues and events. With reference to such diverse events as Brexit, the Russian armed conflict in Ukraine, the financial crisis, the rise of China, and the challenges of identity politics, the author expertly shows how the range of theories presented in the book allow for an understanding of the destabilising events and developments that characterise global politics today, and will continue to do so in the future. This text remains the definitive guide to understanding international relations, and is suitable for undergraduate and postgraduate students of international relations at any stage of their studies. New to this Edition: - Thoroughly updated to showcase the breadth of the latest research and key thinkers in international relations theory. - Entirely rewritten chapter on the development of human rights and international criminal law. - Brand new chapter that offers a sophisticated and up-to-date analysis of the current state of world politics.