Textbook on International Law provides a concise and accessible exposition of the key areas of international law for the student. All the components of an undergraduate course are considered and analysed, with particular emphasis placed on the practice of states. The book provides a thorough grasp of both the theory and practice of international law. This fifth edition has been updated to include new material on the use of force, the International Criminal Court, and terrorism. As well as being an invaluable aid for law students, this book will also help students of international politics and diplomacy in understanding how the international community actually works.