Recent Posts

This week, we are hosting another book symposium on Opinio Juris. This time, we feature a discussion of William Boothby’s new book, New Technologies and the Law in War and Peace, published by Cambridge University Press. In addition to comments from William himself, we have the honor to hear from a list of renowned scholars and practitioners: Kobi Leins, Robert...

[Craig Martin is a Professor of Law and the Co-Director of the International and Comparative Law Center at Washburn University School of Law.] Questions regarding the meaning, importance, and operation of “lawfare” were recently discussed at a great conference on Legal Resilience in an Era of Hybrid Threats at the University of Exeter. Several speakers explained how lawfare is being used by adversaries...

Call for Papers The National Research University Higher School of Economics and PluriCourts are pleased to announce a call for papers for their conference on "Jurisdictional Immunities of States and Their Property: Emergence of New International Customary Law Rules – by Whom?" on 3-4 October 2019 in Moscow, Russia. Paper proposals should be submitted via e-mail to Prof. Geir Ulfstein (geir [dot]...

[Gloria Gaggioli is a Swiss National Science Foundation (SNSF) Professor at the Law Faculty of the University of Geneva as well as Lecturer at the Geneva Academy of International Humanitarian Law and Human Rights and at the University of Neuchâtel (Switzerland). She is specialized in international humanitarian law and human rights law. Prior to joining the University of Geneva, she served as Legal Adviser in...

On 17 May 2017, Judge Marc Perrin de Brichambaut gave a talk at Peking Law School about the role of victims at the ICC. The talk, which was recorded and then transcribed, included a number of shocking comments, such as describing "the Africans" as "a group of 54 countries who provide the suspects and the accused" to the Court. Judge...

[Aurel Sari is a Senior Lecturer in Law at the University of Exeter and the Director of the Exeter Centre for International Law. This post was written in a personal capacity. This post is part of our week-long symposium on soldier self-defense and international law.] The notion that military personnel are entitled to use force in their own defence is widely accepted. However, beyond...

[Adil Ahmad Haque is Professor of Law and Judge Jon O. Newman Scholar at Rutgers Law School. This post is part of our week-long symposium on soldier self-defense and international law.] Suppose that a soldier from State A intentionally kills a civilian in State B. Maybe State A is fighting an international armed conflict against State B. Maybe State A is fighting a non-international armed...

Erica Gaston is an international lawyer with the Global Public Policy institute (GPPi) and a non-resident fellow at the New America Foundation. She has been working in Afghanistan, Iraq, and other conflict or post-conflict zones on the application of laws of war, human rights and other related issues since 2006. This post is part of our week-long symposium on soldier self-defense...

Yulia Ioffe is a DPhil (PhD) candidate in Public International Law at University of Oxford. On 21 April 2019, Ukraine held the second and the final round of its presidential elections. The new President, Volodymyr Zelensky, has vowed to focus on achieving a ceasefire in an armed conflict in the East (which has claimed more than 13,000 lives) and moderating hard-line policies aimed at promoting the...

[Bruce ‘Ossie’ Oswald is Professor at the Melbourne Law School and Director of the Asia Pacific Centre for Military Law.This post is part of our week-long symposium on soldier self-defense and international law.] What follows is an outline of how the use of force in self-defence as a doctrine has evolved in UN peacekeeping operations. I focus on how the use of force...