A comprehensive and in-depth study of the legal position in international law of heads of state, heads of government and other senior state officials, this book analyses relevant treaties, case law, and custom to set out the law in this area and provide practical guidance.

The Law of U.S. Foreign Relations is a comprehensive and incisive discussion of the rules that govern the conduct of U.S. relations with foreign countries and international organizations, and the rules governing how international law applies within the U.S. legal system. Among other topics, this volume examines the constitutional and historical foundations of congressional, executive, and judicial authority in foreign affairs. This includes the constitutional tensions prevalent in legislative efforts to control executive diplomacy, as well as the ebb and flow of judicial engagement in transnational disputes - with the judiciary often serving as umpire but at times invoking doctrines of abstention. The process of U.S. adherence to treaties and other international agreements is closely scrutinized as the authors examine how such law, as well as customary international law and the law-making acts of international organizations, can become a source of U.S. law. Individual chapters focus on the special challenges posed by the exercise of war powers by the federal government (including during recent incidents of international armed conflict), the complex role of the several states in foreign affairs, and the imperative to protect individual rights in the transnational sphere. Among the contemporary issues discussed are the immunity of foreign heads of State, treatment of detainees at Guantánamo, movement of the U.S. Embassy in Israel to Jerusalem, state-level foreign compacts to address climate change, bans affecting refugees and asylum-seekers, and recent interpretations of key statutes, such as the Alien Tort Statute, the Torture Victim Protection Act, and the Foreign Sovereign Immunities Act.

This book is a study of the future of international law as well as the future of the United Nations. It is the first study ever bringing together the laws, policies and practices of the UN for the protection of the earth, the oceans, outer space, human rights, victims of armed conflicts and of humanitarian emergencies, the poor, the vulnerable and the disadvantaged world-wide. It reviews unprecedented dangers and challenges facing humanity such as climate change and weapons of mass destruction, and argues that the international law of the future must become an international law of security and of protection. It submits that the concept of international security in the UN Charter can no longer be restricted to situations of armed conflict but must be given its natural meaning: whatever threatens the security of humanity. It calls for the Security Council to perform its role as the guardian of the security of humankind and sees a leadership role for the UN Secretary-General in analysing and presenting challenges of international security and protection to the Security Council for its attention. Written by a seasoned scholar / practitioner of international law and the United Nations, who has served in key policy, peacemaking, peacekeeping and human rights positions in the United Nations, this book offers indispensable new vistas of international law and policy, and the future role of the United Nations.