Use of Force

[Ralph Janik teaches international law at the University of Vienna, Faculty of Law and Webster Private University Vienna. He specializes in the interplay of international law and international relations. Twitter: @RalphJanik] The crisis in Venezuela could enter a new phase. Juan Guaidó recently flirted with the idea of a US intervention on his behalf when he refrained from ruling out to...

As I've noted before, the jurisdictional regime at the ICC for aggression is exceedingly narrow. In essence, the Court will have jurisdiction over an act of aggression only in the following situation: 1. The aggressor is a member of the Court, has ratified the aggression amendments, and has not opted out of the Court's jurisdiction. 2. The victim is a member of...

[Dr. Kubo Mačák is a Senior Lecturer in Law at the University of Exeter in the United Kingdom.] I would like to start by thanking Opinio Juris for providing a platform for the discussion of internationalized armed conflicts in international law. In the title of my opening post, I paraphrased Carl von Clausewitz to suggest that these types of confrontations have become...

“Internationalized Armed Conflicts in International Law” by Kubo Mačák presents a detailed and insightful analysis of the tipping point at which non-international armed conflict (NIAC) may be ‘internationalized’ and considered to be an international armed conflict (IAC), with the focus in particular in relation to the status of combatants and the law of occupation. Far from esoteric, the topic is...

[Vito Todeschini is an Associate Legal Adviser at the International Commission of Jurists, Middle East and North Africa Programme.] On 30 October 2018, the UN Human Rights Committee (HRC) finally adopted the long-awaited General Comment no. 36 (GC 36) on article 6 of the International Covenant on Civil and Political Rights (ICCPR). GC 36, which replaces GC 6 (1982) and GC...

[Elvina Pothelet is a Ph.D. candidate at the University of Geneva. Her research interests focus on the international law governing the use of force, the law of armed conflict and war crime law.] Kubo Mačák’s book is a rich and thought-provoking contribution to the scholarship on IHL applicability. The writing style and structure of the book make it a smooth and enjoyable read – to...

[Katharine Fortin is an Assistant Professor at the University of Utrecht's Netherlands Institute of Human Rights.] Kubo Mačák’s book starts with the observation that many conflicts today start as internal affairs in which a State confronts a domestic armed group, but often end up getting internationalized. Mačák sets out to unpack and analyse this phenomenon, by identifying at what point a...

[Tamás Hoffmann is a Senior Research Fellow in the Department for the Study of Domestic Implementation of International and European Law at the Hungarian Academy of Sciences.] Kubo’s new monograph on internationalized armed conflicts is a truly remarkable book. It attempts to give a comprehensive yet concise analysis of the nagging legal issues inevitably arising during such conflicts when the line...

[Laurie R. Blank is a Clinical Professor of Law, Director of the Center for International and Comparative Law, and Director of the International Humanitarian Law Clinic at Emory University School of Law.] The classification of international armed conflict (IAC) and non-international armed conflict (NIAC) is the essential building block of any law of armed conflict analysis. Kubo Maçak’s new book, Internationalized...

[Anne Quintin is the Head of the Advisory Service for the International Committee of the Red Cross. Her contribution is written in her personal capacity and the views contained hierin do not necessarily reflect those of the ICRC.] Let me first thank Opinio Juris for the invitation and congratulate Kubo for his excellent, rigorous and well-researched book. The latter brings a...

[Bill Boothby is an Adjunct Professor at La Trobe University in Melbourne, Australia.] After establishing key trends in the evolution over centuries of the law relating to conflict, and having put forward a convincing methodology, the attempt to give meaning to the notion of the internationalisation of a conflict is the task of the first substantive chapter. Numerous ways in which...