The first modern study of the law governing the external exercise of public power in the UK and the Commonwealth.

A fresh look at the bridges and boundaries between foreign relations law and public international law.

This Oxford Handbook ambitiously seeks to lay the groundwork for the relatively new field of comparative foreign relations law. Comparative foreign relations law compares and contrasts how nations, and also supranational entities (for example, the European Union), structure their decisions about matters such as entering into and exiting from international agreements, engaging with international institutions, and using military force, as well as how they incorporate treaties and customary international law into their domestic legal systems. The legal materials that make up a nation's foreign relations law can include constitutional law, statutory law, administrative law, and judicial precedent, among other areas. This book consists of 46 chapters, written by leading authors from around the world. Some of the chapters are empirically focused, others are theoretical, and still others contain in-depth case studies. In addition to being an invaluable resource for scholars working in this area, the book should be of interest to a wide range of lawyers, judges, and law students. Foreign relations law issues are addressed regularly by lawyers working in foreign ministries, and globalization has meant that domestic judges, too, are increasingly confronted by them. In addition, private lawyers who work on matters that extend beyond their home countries often are required to navigate issues of foreign relations law. An increasing number of law school courses in comparative foreign relations law are also now being developed, making this volume an important resource for students as well. Comparative foreign relations law is a newly emerging field of study and teaching, and this volume is likely to become a key reference work as the field continues to develop.

The focus of this law school casebook is on constitutional law as it relates to the conduct of foreign relations, primarily with that subfield dealing with the "separation of powers." Foreign relations law refers to the rules, principles, practices and procedures which structure the formation and execution of U.S. foreign policy, including it's participation in international law and institutions.

What legal principles govern the external exercise of the public power of states within common law legal systems? Foreign Relations Law tackles three fundamental issues: the distribution of the foreign relations power between the organs of government; the impact of the foreign relations power on individual rights; and the treatment of the foreign state within the municipal legal system. Focusing on the four Anglo-Commonwealth states (the United Kingdom, Australia, Canada and New Zealand), McLachlan examines the interaction between public international law and national law and demonstrates that the prime function of foreign relations law is not to exclude foreign affairs from legal regulation, but to allocate jurisdiction and determine applicable law in cases involving the external exercise of the public power of states: between the organs of the state; amongst the national legal systems of different states; and between the national and the international legal systems.

Foreign relations law and public international law are two closely related academic fields that tend to speak past each other. As this innovative volume shows, the two are closely interrelated and depend on each other for their mutual construction and identity. A better understanding of this relationship is of vital importance for upholding important constitutional values like democracy, the rule of law and the protection of human rights, while enabling states to engage in meaningful forms of international cooperation. The book takes a close look at the encounters between the two fields and offers perspectives for a constructive engagement between the two. Collectively, the contributions argue that the delimitation between the two fields occurs in a hybrid zone of interaction which requires both bridges and boundaries: bridges for the construction of the relationship between the two fields, and boundaries for preserving key normative expectations of both domestic and international law. This title is also available as Open Access on Cambridge Core.

'Legalist Empire' explores the intimate connections between international law and empire in the United States from 1898 to 1919.