Use of Force

[Moisés Montiel Mogollón is a lawyer advising individuals, companies, and States on matters of international law, human rights, and other international areas at Lotus Soluciones Legales. He is an Adjunct Professor of International Law at Universidad Iberoamericana (Mexico City) and Universidad Panamericana (Guadalajara).] In the wake of the Russian invasion on Ukraine, which the UN General Assembly has already politically qualified as an act of...

[Hiruni Alwishewa is a PhD Candidate in International Law at The Graduate Institute Geneva, researching the responsibilities of actors involved in the transfer of arms to conflict zones.] Introduction The recent invasion of Ukraine will likely revive the assertion that international law has failed to constrain Russian aggression, as occurred when the Autonomous Region of Crimea was annexed by Russia in March...

[André de Hoogh is Associate Professor in International Law, University of Groningen. He is a member of the Advisory Committee on Public International Law, which provides advice to the Dutch government and parliament; this contribution has been written in his personal capacity, and does not reflect in any way the views of the Advisory Committee. His research covers a wide...

[Carsten Stahn is Professor of International Criminal Law and Global Justice at Leiden Law School.] ‘In times of war, the law falls silent’ (silent enim leges inter arma). This famous maxim by Cicero is often used to illustrate the lack of power of law in the face of conquest and occupation. In the discourse over the war in Ukraine, we witness...

As of 23:00 CET on 21 February 2022, media outlets and journalists have begun to report on an announcement by Russia that it will send troops for "peacekeeping operations" in the Donetsk and Luhansk regions in Eastern Ukraine. This followed Russia's announcement earlier the same evening that it would recognize those regions as independent entities, triggering threats of sanctions from...

[Marc Weller is Professor of International Law and International Constitutional Studies at the University of Cambridge and Editor of the Oxford Handbook on the Use of Force in International Law.] The international rules on the use of force are simple. Force may never be employed as a means of international policy. Force is only available by way of self-defence, if specifically...

[Sophia Zademack, MLaw, LL.M. has previously worked with different Human Rights Organizations and is currently a PhD Candidate at the University of Zurich. Luke James, LLM. is a security analyst interested in peace processes. He has worked at the ICC, OSCE, British Red Cross, Platform for Peace Humanity, UNV and is an Army Reservist.] Summary The defensive weapons supplied to Ukraine are...

[Seyfullah Hasar is a lecturer in international law at Dicle University, Turkey and author of the forthcoming book State Consent to Foreign Military Intervention during Civil Wars, published by Brill] What started as peaceful protests against a sharp rise in fuel prices in Kazakhstan turned into a violent confrontation between the protestors and security forces. The President, claiming that the situation was taken advantage...

[David J. Scheffer is a former US diplomat, an international law professor, and a Senior Fellow of the Council on Foreign Relations.  He is author of The Sit Room: In the Theater of War and Peace.] Legal principles matter as two major democracies—Taiwan and Ukraine—are threatened by superpower neighbors. Whether one argues about Taiwan’s status as a country or a province...

[Katharine Fortin is an Associate Professor at the Netherlands Institute of Human Rights, Utrecht University. She is the founder and co-editor of the Armed Groups and International Law blog.] [Andrew Clapham is Professor of International Law at the Graduate Institute of International and Development Studies in Geneva, a member of the UN Commission on Human Rights in South Sudan, and an Honorary Member of the International Commission of...