Nuclear Weapons under International Law is a comprehensive treatment of nuclear weapons under key international law regimes. It critically reviews international law governing nuclear weapons with regard to the inter-state use of force, international humanitarian law, human rights law, disarmament law, and environmental law, and discusses where relevant the International Court of Justice's 1996 Advisory Opinion. Unique in its approach, it draws upon contributions from expert legal scholars and international law practitioners who have worked with conventional and non-conventional arms control and disarmament issues. As a result, this book embraces academic consideration of legal questions within the context of broader political debates about the status of nuclear weapons under international law.

This book examines the law relating to the possession, threat or use of nuclear weapons. By addressing in logical sequence the law regarding sovereignty, the threat or use of force, the conduct of nuclear hostilities, neutrality, weapons law and war crimes, the book illustrates the topics that an effective national command, control and communications system for nuclear weapons must address. Guidance is given on intractable issues, such as the responsibilities of remote submarine commanders. The continuing relevance of the ICJ's Nuclear Advisory Opinion is assessed, and the prospects for the Treaty on the Prohibition of Nuclear Weapons are discussed. The book has been written in an accessible style so that it will be equally useful to lawyers and practitioners, including relevant commanders, politicians, policy staffs and academics. The objective is to state the law accurately and to explain its implications and provide practical guidance in this most sensitive area. This book is also available as open access.

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In 1996, the International Court of Justice delivered an Advisory Opinion on the legality of the use of nuclear weapons in which the Court stated that "while the existing international law relating to the protection and safeguarding of the environment does not specifically prohibit the use of nuclear weapons it indicates important environmental factors that are properly to be taken into account in the context of the implementation of the principles and rules of the law applicable in armed conflict." The present work analyses this conclusion, focusing on the question whether or not the use of nuclear weapons during international armed conflict would violate existing norms of public international law relating to the protection and safeguarding of the environment. Although the use of weaponry during armed conflict is usually related to the protection of individuals, the rapidly emerging appreciation of, and the worldwide realization of the intrinsic value of, the natural environment as an indispensable asset for the continuation of life, including human life, on this planet, both for present and future generations, warrants a thorough and extensive examination of the question of the (il)legality of the employment of nuclear weapons from the point of view of international environmental protection law. The book consists of two parts. Part I discusses the historical development and the effects of nuclear weapons; Part II discusses the protection of the environment during international armed conflict under ius in bello, ius ad bellum and ius pacis. Only then is it possible to assess the legality of the use of nuclear weapons under this particular set of rules.

The debate about appropriate purposes and policies for U.S. nuclear weapons has been under way since the beginning of the nuclear age. With the end of the Cold War, the debate has entered a new phase, propelled by the post-Cold War transformations of the international political landscape. This volume--based on an exhaustive reexamination of issues addressed in The Future of the U.S.-Soviet Nuclear Relationship (NRC, 1991)--describes the state to which U.S. and Russian nuclear forces and policies have evolved since the Cold War ended. The book evaluates a regime of progressive constraints for future U.S. nuclear weapons policy that includes further reductions in nuclear forces, changes in nuclear operations to preserve deterrence but enhance operational safety, and measures to help prevent proliferation of nuclear weapons. In addition, it examines the conditions and means by which comprehensive nuclear disarmament could become feasible and desirable.

" ""The threat or use of nuclear weapons would generally be contrary to the rules of international law applicable in armed conflict, and in particular the principles and rules of humanitarian law ... There exists an obligation to pursue in good faith and bring to a conclusion negotiations leading to nuclear disarmament in all its aspects under strict and effective international control."" - Advisory Opinion of the International Court of Justice, 8 July 1996 ""This book shows how courageous states from the developing world, working in concert with visionary lawyers, physicians and other sectors of international civil society, boldly obtained astonishing results from the highest court in the world. The World Court clearly ruled that the threat or use of nuclear weapons is illegal in almost all conceivable circumstances. The Court further underlined the unconditional obligation of the nuclear weapon states to begin and conclude negotiations on nuclear disarmament in all its aspects. It is now up to all of us to determine the follow-up, whatever the opposition. We cannot end this century without clear commitments and steps to eliminate nuclear weapons."" - Razali Ismail, Permanent Representative of Malaysia to the United Nations, President of the United Nations General Assembly, 1996-1997 ""It is not often that a judicial opinion on a given question is both hailed and criticized by participants on all sides of the question. This book, written by a leading member of the team that helped to prepare the case on the illegality of the threat and use of nuclear weapons, explains succinctly what the World Court, and the judges in their separate statements, did and did not say. In so doing, it makes a compelling case for the proposition that the Opinion represents a milestone on the road to nuclear abolition."" - Peter Weiss, Co-President, International Association of Lawyers Against Nuclear Arms The 20th century has been defined in large part by the unleashing of the terrible destructive power of the atom, and the subsequent struggle to overcome the threat of nuclear annihilation. If humankind survives, the 8 July 1996 Advisory Opinion of the International Court of Justice, and the extraordinary process that led up to it, will have played an essential role. The (Il)legality of the Threat or Use of Nuclear Weapons is a concise yet thorough guide to the case. In straightforward language, it describes the history of this unprecedented initiative and summarizes and explains states' arguments to the Court, the Court's findings, and the separate statements of the judges. The author provides cogent expert analysis and, most importantly, reveals how the opinion imparts hope and points the way to the future: "" The Court has authoritatively interpreted law which states acknowledge they must follow, including humanitarian law protecting civilians from indiscriminate effects of warfare, the United Nations Charter, and the Nuclear Non-Proliferation Treaty. The implications are profound: abandonment of reliance on the threat and use of nuclear weapons as an instrument of national policy, and expeditious elimination of nuclear arsenals. The opinion can be cited as an authoritative statement of the law in any political or legal setting - including the United Nations and national courts and parliaments - in which nuclear weapon policies are challenged."" John Burroughs, an attorney for the Western States Legal Foundation in California, served as the legal coordinator for the World Court Project/International Association of Lawyers Against Nuclear Arms at the November 1995 hearings before the International Court of Justice. "

The Treaty on the Prohibition of Nuclear Weapons (2017) sets out to challenge deterrence policies and military defence doctrines, taking a humanitarian approach intended to disrupt the nuclear status quo. States with nuclear weapons oppose its very existence, neither participating in its development nor adopting its final text. Civil society groups seem determined, however, to stigmatize and delegitimize nuclear weapons towards their abolition. This book analyzes how the Treaty influences the international security architecture, examining legal, institutional and diplomatic implications of the Treaty and exploring its real and potential impact for both states acceding to the Treaty and those opposing it. It concludes with practical recommendations for international lawyers and policymakers regarding non-proliferation and disarmament matters, ultimately noting that nuclear weapons threaten peace, and everyone should have the right to nuclear peace and freedom from nuclear fear.