While treaties can be notoriously difficult to amend by formal means, they must nevertheless be adapted over time in order to remain useful. Herein lies the role of subsequent practice as a key tool for treaty change. Subsequent practice-a well-established means of treaty interpretation-sometimes diverges from the original treaty provision to such an extent that it can no longer be said to constitute an act of interpretation or application. Rather, it becomes, in effect, one of treaty modification. The modification of treaties by subsequent practice extends to all fields of international law, from the law of the sea, environmental law, and investment law, to human rights and humanitarian law. Such modifications can have significant practical consequences, from revising or creating new rights and obligations, to establishing new institutional mechanisms. Determining when and how treaty modification by subsequent practice occurs poses difficulty to legal scholars and dispute settlement bodies alike, and impacts States' expectations as to their treaty obligations. This significant yet underexplored process is the focus of this book. Modification of Treaties by Subsequent Practice proves that subsequent practice can-under carefully defined conditions that ensure strict accordance with the will of the treaty parties-alter, supplement, and terminate treaty provisions or even entire treaty frameworks. It can also generate customary law and fuel regime interaction. Ultimately, this book demonstrates the relevance and dynamism of the process of treaty modification by subsequent practice, emphasizing the need to deal with the issue head on, and explains-on a theoretical and practical level-how it can be identified and dealt with more consistently in the future. The book thus contributes to a deeper understanding of the process of treaty modification by subsequent practice and its continued role in striking the judicious balance between the stability of treaties on the one hand, and the organic evolution of the law on the other.

Focusing on how states have utilized the persistent objector rule in practice, this volume details how the rule emerged and operates, how it should be conceptualised, and what its implications are for the binding nature of customary international law.

Following the vexed codification attempts of the International Law Commission and the relevant jurisprudence of the International Court of Justice, this book addresses the permissibility of the practice of diplomatic asylum under general international law. In the light of a wealth of recent practice, most prominently the case of Julian Assange, the main objective of this book is to ascertain whether or not the practice of granting asylum within the premises of the diplomatic mission finds foundation under general international law. In doing so, it explores the legal framework of the Vienna Convention on Diplomatic Relations 1961, the regional treaty framework of Latin America, customary international law, and a possible legal basis for the practice on the basis of humanitarian considerations. In cases where the practice takes place without a legal basis, this book aims to contribute to bridging the legal lacuna created by the rigid nature of international diplomatic law with the absolute nature of the inviolability of the mission premises facilitating the continuation of the practice of diplomatic asylum even where it is without legal foundation. It does so by proposing solutions to the problem of diplomatic asylum. This book also aims to establish the extent to which international law relating to diplomatic asylum may presently find itself within a period of transformation indicative of both a change in the nature of the practice as well as exploring whether recent notions of humanity are superseding the traditional fundaments of the international legal system in this regard.

In international relations, reciprocity describes an environment in which States support one another for short- or long-term advantage through the balancing of rights, duties and interests. This book examines reciprocity in the context of international law. It considers the role reciprocity plays in the creation and development of international law as well as in the interpretation and application of international law. The book illuminates the reciprocal framework of international law and international relations by examining the role reciprocity plays in different types of States’ obligations, including bilateral, bilateralisable multilateral, non-bilateralisable multilateral and obligations erga omnes. The book examines how reciprocity is intertwined with the principle of equality, as the rights and obligations of States are equal irrespective of size and economic or military strength, and the beneficial effects of reciprocity in creating stability and cooperation amongst States.

This book explores international law as a social construct by analysing its social foundations and by re-conceptualizing the way in which it is commonly understood. It asks what law is and how it works in society, and shows why it is worth to struggle for new and better-working rules in the international legal order.

Several disturbing issues pose a threat to the marine environment and its wellbeing, among them marine environmental pollution and degradation of marine biodiversity. Most troubling is that these issues are overwhelmingly caused by human activities which are sometimes transboundary, and their consequences will become more severe and complicated if not properly curbed. Thus, these activities require comprehensive policies, laws, and principles to manage them effectively. Linked to these solutions is the need for responsibilities, cooperation and commitments at local, national, regional and international levels. Contemporary Marine Environmental Law and Policy presents a thorough appraisal of the main issues, actors and institutions engaged in the legal aspects of marine environmental conservation. With contributions from an international range of authors, the book provides a concise account of the legal and policy framework underlying international marine environmental issues, and of the fundamental concepts and strategies that are important to the protection of the marine environment. Some of the topics explored include: the prevention of marine pollution caused by land based activities, ships, and offshore hydrocarbon and mineral resources exploration; the conservation and management of marine living resources; the marine environment in the polar regions; and the settlement of marine environmental disputes. This book provides a solid foundation for anyone studying International Environmental Law and the Law of the Sea. It will also appeal to anyone seeking to gain a deeper understanding of this hugely important subject.

Dr. E. C. Djamson, a distinguished Ghanaian Lawyer and Diplomat, has put political scientists and students of international law into his debt. His work is an important contribution to the literature of Mro-European co operation. He examines the history of relations between the European Economic Community and the Associated African States; he provides a thorough analysis of the international institutions and of the wider political, economic and legal problems involved in Mro-European co-operation. The author is concerned with the manner in which Mrican sovereign states are now able to enter into relations with Europe on a basis of legal equality. He emphasizes the principles involved in the law of nations; this should comprise, not merely "civilized" law in traditional parlance, but also Mrican customary law. As Dr. Djamson puts it, "the international community can no longer afford to ignore the principles of law peculiar to the so-called Third World . . . after all the 'general principles of law recognized by civilized nations' are not at variance with the basic ideas of law and justice as understood by the newcomers to the international scene. " At the same time, both the new states and the old, established powers must accept those obligations that derive from their being signatories to international agreement. Adherence to the principle of pacta sunt obser vanda does not violate sovereignty, but of itself gives evidence of a country's maturity and ability to co-exist with other sovereign entities. Dr.