This book considers British influences on the development of international law over 100 years from 1915. This century has been marked by unprecedented developments in international law, not least the setting up of an array of international organisations, including the United Nations and the League of Nations, and international courts and tribunals (including the International Court of Justice and its predecessor the Permanent Court of International Justice, as well as the International Criminal Court). Two world wars, complex transboundary issues and increased globalisation have shown the importance of international law. This volume addresses these developments – domestic, regional and international - and looks at how Britain and British people (broadly defined) have influenced these changes. The contributors to the book have examined an array of different issues. These include British influences on treaty-making, recognition and immunity, as well as on specific fields of international law, such as armed conflict, criminal law, environment and human rights. It has commentary on the British influence on the sources of international law, including by its courts and Foreign Office, in the development of the European Union and in the idea of a professional international lawyer. There are also reflections on many of the key people over the century. The book provides a novel perspective, which surveys and appraises the contributions of British people and institutions in domestic and international legal forums and their key role in the development, interpretation and application of international law. Please also see the following related titles: - The Role of Legal Advisers in International Law - British Contributions to International Law, 1915-2015