Terry Gill is Emeritus Professor of Military Law at the University of Amsterdam having held the chair from September 2001 until September 2020 and was also holder of the chair in Military Law at the Netherlands Defence Academy from 2005 until July 2019. He was also firstly Assistant and later Associate Professor of Public International Law at Utrecht University from 1985-2013. He is founder and co-director of the Research Program on the Law of Armed Conflict and Military Operations (LACMO) at the Amsterdam Centre for International Law and is convenor of the Netherlands Research Forum on the Law of Armed Conflict and Peace Operations (LACPO) in which researchers within the LACMO program and external researchers and practitioners hold periodic meetings to discuss recent developments in the relevant areas of interest. He is also chair of the LACMO International Research Network which fosters and coordinates research cooperation in the areas of international military law and the law of armed conflict between a number of leading institutions in Europe, North America, Asia and the Pacific which are active in this field . Professor Gill is Editor in Chief of the Yearbook of International Humanitarian Law and is a member of the editorial boards of the The Military Law Review (Militair Rechtelijk Tijdschrift), the Journal of Armed Conflict & Security Law and the Journal of International Peacekeeping . He is a member of the Board of Directors of The International Society of Military Law & the Law of War and member of International Law Association, the Netherlands Society of International Law, and of the Netherlands Military Law Society (Militair Rechtelijke Vereniging).
He (co) teaches courses on international humanitarian law , international military operational law and the use of force at The University of Amsterdam and is currently (co) supervisor of eight PhD candidates affiliated with ACIL and LACMO on various topics related to international military operational law, humanitarian law and the use of force. He has been a Fulbright visiting scholar at Columbia University and visiting research fellow at Cambridge University, Universidade de Coimbra, Universidad de Granada and the International Institute of Humanitarian Law in San Remo.
He was a member of the International Group of Experts which produced the Tallinn Manual on the Application of International Law to Cyber Warfare, which was published in 2013 and which was updated in 2017 to include the application of international law to peacetime cyber activities (Tallinn 2.0 Manual on the International Law Applicable to Cyber Operations). He was chairman of the Study Group of the International Law Association which completed a report on The Conduct of Hostilities in the 21st Century in 2017 and a senior academic advisor and co-editor/author of the Leuven Manual on the Application of International Law to Peace Operations which was prepared under the auspices of the International Society of Military Law & the Law of War and published in December 2017. He was a member of the expert group on "Direct Participation in Hostilities" convened by the ICRC and TMC Asser Institute between 2003-2008 and has contributed to several military manuals in use by the Netherlands armed forces and policy advice reports to the Netherlands Government and Parliament on matters of public international law. Professor Gill was named "Officer in the Order of Orange Nassau" in September 2019 in recognition of his contribution to legal education and research in support of the Netherlands armed forces.
Professor Gill's research is primarily in the areas of international law relating to the use of force and international humanitarian law and military operational law. He has published numerous articles on these topics in both Dutch and English and as director of the research program Law of Armed Conflict and Peace Operations and the research forum LACPO, coordinates research in these fields by senior researchers and PhD candidates from ACIL, Netherlands Defence Academy, TMC Asser Institute and other organizations within the context of those fora.
Some recent and forthcoming publications include:
In addition to the teaching activities referred to above, Prof. Gill is Acting Coordinator of the Specialization Program in Military Law at the University of Amsterdam and supervises numerous masters theses in the fields of international and military law.
Tel: +31 (0)20 525 3937 (Wed./Thu.) / 3966 (secretary)