Photini Pazartzis, Ph.D., Paris-II Panthéon-Assas, is Professor of International Law and Director of the Athens Public International Law Center of the Faculty of Law at the University of Athens. She is a member of the UN Human Rights Committee and Vice-President of ESIL. She has published extensively on public international law, settlement of disputes, international criminal law, and human rights law. Panos Merkouris, Ph.D., Queen Mary University of London, is tenure-track professor at the University of Groningen and holds a Chair in Interpretation & Dispute Settlement. He has published extensively on law of treaties, and in 2017 received an ERC Starting Grant for the project “The Rules of Interpretation of Customary International Law”.