International Law and the Use of Force brings together cases and materials on both the law governing the resort to armed force (jus ad bellum) and the law governing the conduct of force (jus in bello). It provides a dynamic yet classic introduction for students, scholars and practitioners. The book explores the United Nations Charter rules, and the Hague and Geneva Conventions as central to the regulation of armed force. There are also chapters on the historic development of international law on the use of force and important cases from the last ten years, including the International Court of Justice decisions in the Oil Platforms Case and the Wall Case, and the U.S. Supreme Court decisions, Rasul v. Bush and Hamdi v. Rumsfeld.