An analysis of the role of the International Committee of the Red Cross (ICRC) in international norm creation and the progressive development of international humanitarian law.

The third edition of this work sets out a comprehensive and analytical manual of international humanitarian law, accompanied by case analysis and extensive explanatory commentary by a team of distinguished and internationally renowned experts.

International Humanitarian Law (IHL) is in a state of some turbulence, as a result of, among other things, non-international armed conflicts, terrorist threats and the rise of new technologies. This incisive book observes that while states appear to be reluctant to act as agents of change, informal methods of law-making are flourishing. Illustrating that not only courts, but various non-state actors, push for legal developments, this timely work offers an insight into the causes of this somewhat ambivalent state of IHL by focusing attention on both the legitimacy of law-making processes and the actors involved.

Anthony Cullen advances an argument for a particular approach to the interpretation of non-international armed conflict in international humanitarian law. The first part examines the origins of the 'armed conflict' concept and its development as the lower threshold for the application of international humanitarian law. Here the meaning of the term is traced from its use in the Hague Regulations of 1899 until the present day. The second part focuses on a number of contemporary developments which have affected the scope of non-international armed conflict. The case law of the International Criminal Tribunals for the former Yugoslavia has been especially influential and the definition of non-international armed conflict provided by this institution is examined in detail. It is argued that this concept represents the most authoritative definition of the threshold and that, despite differences in interpretation, there exist reasons to interpret an identical threshold of application in the Rome Statute.

The essays selected for the first part of this volume offer an insight into the development, as distinguished from the history, of international humanitarian law. The focus of the majority of the works reprinted here is on an analysis of the adequacy of the law as it stood at the time of the respective publication and in the light of existing contemporary armed conflicts and military operations. Thus, the reader is afforded an in-depth look at the early roots of international humanitarian law, the continuing relevance of that body of law despite advances in weapons technology and the efforts to progressively develop it. International humanitarian law's development cannot be considered in isolation from its principles. The essays selected for the second part of the volume deal with the two fundamental principles underlying all of international humanitarian law: humanity and military necessity. The articles on the principles of humanity include reflections on the famous Martens Clause, and the analyses of military necessity take no account of 'Kriegsraison'. Moreover, they offer proof of the customary character of the principle of distinction in land, air and naval warfare.

Increasingly, war is and will be fought by machines – and virtual networks linking machines - which, to varying degrees, are controlled by humans. This book explores the legal challenges for armed forces resulting from the development and use of new military technologies – automated and autonomous weapon systems, cyber weapons, “non-lethal” weapons and advanced communications - for the conduct of warfare. The contributions, each written by scholars and military officers with expertise in International Humanitarian Law (IHL), provide analysis and recommendations for armed forces as to how these new technologies may be used in accordance with international law. Moreover, the chapters provide suggestions for military doctrine to ensure continued compliance with IHL during this ever-more-rapid evolution of technology.