Bringing together the law of armed conflict governing the use of weapons into a single volume, the fully updated Second Edition of Weapons and the Law of Armed Conflict interprets these rules and discusses the factors influencing future developments in weapons law. After relating the historical evolution of weapons law, the book discusses the important customary principles that are the foundation of the subject, and provides a condensed account of the law that exists on the use of weapons. The treaties and customary rules applying to particular categories of weapon are thereafter listed and explained article by article and rule by rule in a series of chapters. Having stated the law as it is, the book then explores the way in which this dynamic field of international law develops in the light of various influences. The legal review of weapons is discussed, both from the perspective of how such reviews should be undertaken and how such a system should be established. Having stated the law as it is, the book then investigates the way in which this dynamic field of international law develops in the light of various influences. In the final chapter, the prospects for future rule change are considered. This Second Edition includes a discussion of new treaty law on expanding bullets, the arms trade, and norms in relation to biological and chemical weapons. It also analyses the International Manuals on air and missile warfare law and on cyber warfare law, the challenges posed by 'lethal autonomous weapon systems', and developments in the field of information and telecommunications otherwise known as cyber activities.

A close examination of the interface between autonomous technologies and the law with legal analysis grounded in technological realities.

The first comprehensive and systemic analysis of States' weapons review obligation under international law underpinned by empirical research.

Modern technological development has been both rapid and fundamentally transformative of the means and methods of warfare, and of the broader environment in which warfare is conducted. In many cases, technological development has been stimulated by, and dedicated to, addressing military requirements. On other occasions, technological developments outside the military sphere affect or inform the conduct of warfare and military expectations. The introduction of new technologies such as information technology, space technologies, nanotechnology and robotic technologies into our civil life, and into warfare, is expected to influence the application and interpretation of the existing rules of the law of armed conflict. In this book, scholars and practitioners working in the fields critically examine the potential legal challenges arising from the use of new technologies and future directions of legal development in light of the specific characteristics and challenges each technology presents with regard to foreseeable humanitarian impacts upon the battlespace.

Emerging technologies have always played an important role in armed conflict. From the crossbow to cyber capabilities, technology that could be weaponized to create an advantage over an adversary has inevitably found its way into military arsenals for use in armed conflict. The weaponization of emerging technologies, however, raises challenging legal issues with respect to the law of armed conflict. As States continue to develop and exploit new technologies, how will the law of armed conflict address the use of these technologies on the battlefield? Is existing law sufficient to regulate new technologies, such as cyber capabilities, autonomous weapons systems, and artificial intelligence? Have emerging technologies fundamentally altered the way we should understand concepts such as law-of-war precautions and the principle of distinction? How can we ensure compliance and accountability in light of technological advancement? This volume of the Lieber Studies explores these critical questions while highlighting the legal challenges--and opportunities--presented by the use of emerging technologies on the battlefield.

This book introduces students to the essential questions of the law of armed conflict and international humanitarian law.