This volume examines comparatively the views and principles of seven prominent ethical traditions on one of the most pressing issues of modern politics - the making and unmaking of state and national boundaries. The traditions represented are Judaism, Christianity, Islam, natural law, Confucianism, liberalism and international law. Each contributor, an expert within one of these traditions, shows how that tradition can handle the five dominant methods of altering state and national boundaries: conquest, settlement, purchase, inheritance and secession. Written by a distinguished group of international specialists this volume is unique in providing both in-depth normative and comparative perspectives on a troubling question that will offer readers real insight into inter-tradition conflict. Those readers will range from upper-level undergraduates to scholars in such fields as philosophy, political science, international relations and comparative religion.