Of undoubtable relevance today, in a post-9-11 world of growing political tension and unease, this Very Short Introduction covers the topics essential to an understanding of modern international relations. Paul Wilkinson explains the theories and the practice that underlie the subject, and investigates issues ranging from foreign policy, arms control, and terrorism, to the environment and world poverty. He examines the role of organizations such as the United Nations and the European Union, as well as the influence of ethnic and religious movements and terrorist groups which also play a role in shaping the way states and governments interact. This up-to-date book is required reading for those seeking a new perspective to help untangle and decipher international events.