Dire Tladi is a professor of international law at the Department of Public Law and the Institute for International and Comparative Law in Africa at the University of Pretoria. He is also extraordinary professor at the Public Law Department of the University of Stellenbosch. He has served as the Principal State Law Adviser for International Law for the South African Department of International Relations and Cooperation and Legal Counsellor to the South Africa Mission to the United Nations. His main academic specializations are in public international law, human rights law, environmental law and international criminal law. On 1 January 2012 he commenced a five-year term as member of the United Nations International Law Commission. Education Dire Tladi earned his BLC and LLB degree cum laude from the University of Pretoria, (South Africa), an LL.M. from the University of Connecticut (USA) and a LLD (International law) from the Erasmus University (Netherlands). He is currently co-editor in chief of the South African Yearbook of International Law. He has served on the editorial board for the Pretoria University Law Press (PULP) journal Constitutional Court Review. He also serves on the editorial board of the Journal of Practice of International Courts and Tribunals. In addition to more than 50 scholarly publications, Dire Tladi has also published a novel, Blood in the Sand of Justice, based on a fictional account of the assassination of the Prosecutor of the International Criminal Court. Since his appointment at the end of May 2015, Professor Tladi is leading the United Nations International Law Commission, as Special Rapporteur, to give content to Jus Cogens, by identifying how rules and norms are elevated to the status of Jus Cogens and determining the impact of these norms. In 2020, Tladi was appointed by the National Research Foundation's (NRF) South African Research Initiative (SARChI) as the SARChI Chair for Constitutional International Law starting 2021. Selected bibliography Books Peremptory Norms of General International Law (Jus Cogens): Disquisitions and Disputations (Brill, 2021) The Trialogues on War and Peace: Vol I Use of Force Against Non-State Actors O’Connell, Tams and Tladi (series editors: Anne Peters and Christian Marxsen)(Cambridge, 2019) Duagrd’s International Law: A South African Perspective (Juta, 2018) (With J Dugard, M du Plessis and T Maluwa) The Pursuit of a Brave New World in International Law: Essays in Honour of John Dugard (Brill 2017) (with Maluwa and du Plessis) Sustainable Development in International Law: An