Ignacio de la Rasilla is the Han Depei Professor of International Law at the Wuhan University Institute of International Law, China. He was educated in Spain (LL.B. from Universidad Complutense de Madrid), Switzerland (M.A. and Ph.D from The Graduate Institute, Geneva), the United States of America (LL.M. from Harvard University) and Northern Italy (Max Weber Fellow at the European University Institute, Florence). Previously he served as Lecturer and, then, as Senior Lecturer in Law at Brunel University London and adjunct professor at New York University, La Pietra, Florence. He is the author of around sixty journal articles and book chapters, and the author or editor of five books on international law and its history, including In the Shadow of Vitoria: A History of International Law in Spain, 1770–1953 (2017). Jorge E. Viñuales is the Harold Samuel Professor of Law and Environmental Policy at the University of Cambridge, where he founded the Cambridge Centre for Environment, Energy and Natural Resource Governance (C-EENRG). He is also the Chairman of the Compliance Committee of the UN-ECE/WHO-Europe Protocol on Water and Health, a member of the Panel of Arbitrators of the Shanghai International Arbitration Centre, the Director-General of the Latin American Society of International Law, and an Of Counsel with Lalive. Prior to joining Cambridge, he was the Pictet Chair of International Environmental Law at the Graduate Institute, Geneva, where he keeps a limited affiliation as Adjunct Professor of Public International Law.