Prior to the progressive development of the law of armed conflict heralded by the 1949 Geneva Conventions — most particularly in relation to the concepts of international and non-international armed conflict-the customary doctrine on recognition of belligerency functioned for almost 200 years as the definitive legal scheme for differentiating internal conflict from "civil wars", in which the law of war as applicable between states applied de jure. Employing a legal historical approach, this book describes the thematic and practical fundamentals of the doctrine, and analyzes some of the more significant challenges to its application. In doing so, it assesses whether, how, and why the doctrine on recognition of belligerency was considered "fit for purpose," and seeks to inform debate as to its continuity and utility within the modern scheme of the law of armed conflict.

While some have argued that neutrality has become irrelevant, this volume asserts that neutrality continues to be a key concept of the law of armed conflict. Neutrality in Contemporary International Law details the rights and duties of neutral states and demonstrates how the rules of neutrality continue to apply in modern day conflicts.

This book comprises contributions by leading experts in the field of international humanitarian law on the subject of the categorisation or classification of armed conflict. It is divided into two sections: the first aims to provide the reader with a sound understanding of the legal questions surrounding the classification of hostilities and its consequences; the second includes ten case studies that examine practice in respect of classification. Understanding how classification operates in theory and practice is a precursor to identifying the relevant rules that govern parties to hostilities. With changing forms of armed conflict which may involve multi-national operations, transnational armed groups and organized criminal gangs, the need for clarity of the law is all-important. The case studies selected for analysis are Northern Ireland, DRC, Colombia, Afghanistan (from 2001), Gaza, South Ossetia, Iraq (from 2003), Lebanon (2006), the so-called war against Al-Qaeda, and future trends. The studies explore the legal consequences of classification particularly in respect of the use of force, detention in armed conflict, and the relationship between human rights law and international humanitarian law. The practice identified in the case studies allows the final chapter to draw conclusions as to the state of the law on classification.

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.

This book provides the first comprehensive analysis of factors that transform a prima facie non-international armed conflict (NIAC) into an international armed conflict (IAC) and the consequences that follow from this process of internationalization. It examines in detail the historical development as well as the current state of the relevant rules of international humanitarian law. The discussion is grounded in general international law, complemented with abundant references to case law, and illustrated by examples from twentieth and twenty-first century armed conflicts. In Part I, the book puts forward a thorough catalogue of modalities of conflict internationalization that includes outside intervention, State dissolution, and recognition of belligerency. It then specifically considers the legal qualification of complex situations that feature more than two conflict parties and contrasts the mechanism of internationalization of armed conflicts with the reverse process of de-internationalization. Part II of the book challenges the conventional wisdom that members of non-State armed groups do not normally benefit from combatant status. It argues that the majority of fighters belonging to non-State armed groups in most types of internationalized armed conflicts are in fact eligible for combatant status. Finally, Part III turns to belligerent occupation, traditionally understood as a leading example of a notion that cannot be transposed to armed conflicts occurring in the territory of a single State. By contrast, the book argues in favour of the applicability of the law of belligerent occupation to internationalized armed conflicts.

Prior to the progressive development of the law of armed conflict heralded by the 1949 Geneva Conventions most particularly in relation to the concepts of international and non-international armed conflict-the customary doctrine on recognition of belligerency functioned for almost 200 years as the definitive legal scheme for differentiating internal conflict from "civil wars", in which the law of war as applicable between states applied de jure. Employing a legal historical approach, this book describes the thematic and practical fundamentals of the doctrine, and analyzes some of the more significant challenges to its application. In doing so, it assesses whether, how, and why the doctrine on recognition of belligerency was considered "fit for purpose," and seeks to inform debate as to its continuity and utility within the modern scheme of the law of armed conflict.

Originally published by Hersch Lauterpacht in 1947, this book presents a detailed study of recognition in international law, examining its crucial significance in relation to statehood, governments and belligerency. The author develops a strong argument for positioning recognition within the context of international law, reacting against the widely accepted conception of it as an area of international politics. Numerous examples of the use of law and conscious adherence to legal principle in the practice of states are used to give weight to this perspective. This paperback re-issue in 2012 includes a newly commissioned Foreword by James Crawford, Whewell Professor of International Law at the University of Cambridge and a Fellow of Jesus College, Cambridge.