This book is an updated version of the General Course on public international law given by the author in French at the Hague Academy of International Law in 1988. It provides an outline of the Law of Nations in a perspective that focuses on its application and development through domestic courts and other legal actors'. It is based on the idea that international law is no longer the exclusive province of diplomats but must evolve under the guidance of all State organs charged with applying the law.

General Principles and the Coherence of International Lawprovides a collection of intellectually stimulating contributions from leading international lawyers to the discourse on the role of general principles in international law. Offering a comprehensive analysis of the doctrines, practices, and debates on general principles of law, the volume assesses their role in safeguarding the coherence of the international legal system. This important book addresses the relationship between principles of law and the other sources of international law, explores the interplay between principles of law and domestic and regional legal systems and the role of principles of law with regard to three specific regimes of international law: investment law, human rights law and environmental law.

By providing a systematic analysis of how international law is incorporated and implemented in over two dozen states, this book analyzes how the international order and national legal systems interact with each other. It highlights the mutual influence of international and domestic legal systems and how changes in each are modifying the other.

The Engagement of Domestic Courts with International Law advances and develops a new paradigm for describing, assessing, and understanding the role of domestic courts in the international legal order.

The Interpretation of International Law by Domestic Courts assesses the growing role of domestic courts in the interpretation of international law. It asks whether and if so to what extent domestic courts make use of the international rules of interpretation set forth in the Vienna Convention on the Law of Treaties. Given the expectation that rules of international law are to have a uniform interpretation and application throughout the world, the practice of domestic courts is considerably more diverse. The contributions to this book analyse three key questions: first, whether international law requires a coherent interpretive approach by domestic courts. Second, whether a common or convergent methodological outlook can be found in domestic court practice. Third, whether a common interpretive approach is desirable from a normative perspective. The book identfies a considerable tension between international law's ambition for universal and uniform application and a plurality of different approaches. This tension between unity and diversity is analysed by a group of leading international lawyers from a wide range of geographical, disciplinary and methodological approaches. Drawing on domestic practice of number of jurisdictions including, among others, Colombia, France, Japan, India, Israel, Mexico, South Africa, the United Kingdom and the United States, the book puts the interpretative practice of domestic courts in a wider context. Its chapters offer doctrinal, practical as well as theoretical perspectives on a central question for international law.

The Fluid State was cited by the High Court in Momcilovic v The Queen [2011] HCA 34 (8 September 2011)Traditional accounts of the relationship between international and national law present the interaction between the two as relatively ordered, if conflicting. This limited view of the relationship has become outmoded, as the scope of international legal regulation and the internationalised context of domestic law continue to expand. This book analyses some of the national contexts in which international law and domestic law interact and identifies the way in which attitudes to international law shift between them. Some of the questions considered are:How do perceptions of international law differ according to particular institutional vantage-points, whether that of the executive, the legislature or the judiciary? What is the impact of the perceived 'democratic deficit' in international treaty-making? What are some of the ways in which the judiciary acts as a gatekeeper between the national and international legal orders? How does national politics influence engagement with the international sphere? The contributors bring a range of different perspectives: politics, law and international relations. They include influential scholars such as Mayo Moran, Ann Capling, John Uhr, Andrew Byrnes and Janet MacLean and they discuss contemporary issues, such as the Australia-US Free Trade Agreement and the 2003 Iraq War.

Kate Parlett's study of the individual in the international legal system examines the way in which individuals have come to have a certain status in international law, from the first treaties conferring rights and capacities on individuals through to the present day. The analysis cuts across fields including human rights law, international investment law, international claims processes, humanitarian law and international criminal law in order to draw conclusions about structural change in the international legal system. By engaging with much new literature on non-state actors in international law, she seeks to dispel myths about state-centrism and the direction in which the international legal system continues to evolve.

The relationship between domestic courts and international law is usually defined by the frameworks of monism and dualism. The Engagement of Domestic Courts with International Law advances and develops a new paradigm for describing, assessing, and understanding the role of domestic courts in the international legal order. Two trends are examined in parallel in this volume. The traditional dividing lines between national and international law norms and institutions have become increasingly blurred. However, the practice of domestic courts can less and less be understood by reference to a formal approach that dictates how national legal orders receive international law. The solutions that courts reach are often based on a variety of other considerations that are not captured by the classical formal models. The aim of the book is to bring together the wide variety of types of engagement, as an important step towards a better understanding of what courts do and, eventually, towards a normative exercise of articulating principles or guidelines for the engagement of domestic courts with international law. To bring together the pragmatic approaches of domestic courts, the International Law Association Study Group on Principles on the Engagement of Domestic Courts with International Law engaged in studies with experts from a variety of backgrounds. On the basis of the Study Group's Final Report, the editors of this book continued to work with experts from different jurisdictions to collect and analyse alternate pragmatic forms of engagement from domestic courts. This publication contains the outcome of this process.

The more international law, taken as a global answer to global problems, intrudes into domestic legal systems, the more it takes on the role and function of domestic law. This raises a separation of powers question regarding law–making powers. This book considers that specific issue. In contrast to other studies on domestic courts applying international law, its constitutional orientation focuses on the presumptions concerning the distribution of state power. It collects and examines relevant decisions regarding treaties and customary international law from four leading legal systems, the US, the UK, France, and the Netherlands. Those decisions reveal that institutional and conceptual allegiances to constitutional structures render it difficult for courts to see their mandates and powers in terms other than exclusively national. Constitutionalism generates an inevitable dualism between international law and national law, one which cannot necessarily be overcome by express constitutional provisions accommodating international law. Valuable for academics and practitioners in the fields of international and constitutional law.

International Law in the U.S. Legal System provides a wide-ranging overview of how international law intersects with the domestic legal system of the United States, and points out various unresolved issues and areas of controversy. Curtis Bradley explains the structure of the U.S. legal system and the various separation of powers and federalism considerations implicated by this structure, especially as these considerations relate to the conduct of foreign affairs. Against this backdrop, he covers all of the principal forms of international law: treaties, executive agreements, decisions and orders of international institutions, customary international law, and jus cogens norms. He also explores a number of issues that are implicated by the intersection of U.S. law and international law, such as treaty withdrawal, foreign sovereign immunity, international human rights litigation, war powers, extradition, and extraterritoriality. This book highlights recent decisions and events relating to the topic, including various actions taken during the Trump administration, while also taking into account relevant historical materials, including materials relating to the U.S. Constitutional founding. Written by one of the most cited international law scholars in the United States, the book is a resource for lawyers, law students, legal scholars, and judges from around the world.