LLM (University of Amsterdam) PhD (University of Amsterdam)
 Home Department: Centre for Human Rights

Prof. Dr. Jann K. Kleffner LL.M. is an Extraordinary Professor at the Centre for Human Rights at the University of Pretoria’s Faculty of Law. He is Professor of International Law at the Swedish Defence University. Professor Kleffner holds LL.M. and PhD degrees in international law from the University of Amsterdam Law School in The Netherlands. He has been a fellow of the Geneva Academy of International Humanitarian Law and Human Rights, the Institute for International and Comparative Law in Africa at the University of Pretoria, and of DePaul University Law School, Chicago, USA. Professor Kleffner has served as expert and consultant for a number of states and inter-governmental and non-governmental organisations, including the United Nations, the International Committee of the Red Cross, the International Criminal Court, the International Criminal Tribunal for the Former Yugoslavia and the International Law Association. He has also advised law firms in the areas of the law of armed conflict and international criminal law, in addition to fulfilling a number of editorial functions. Between 2010 and 2020, he served as Head of the Centre for International and Operational Law at the Swedish Defence University.

Areas of Research interest- Public international law, law of armed conflict and peace operations, jus ad bellum, international criminal law, human rights law


Publications in 2020

“Responsibility of organized armed groups controlling territory: attributing conduct to ISIS”, in: Ducheine et al (eds.), Military operations and the notion of control under international law, TMC Asser Press (2020) 307-328 (with Katharine Fortin) https://doi.org/10.1007/978-94-6265-395-5_15

“A Bird’s-eye view on compliance with the law of armed conflict 70 years after the adoption of the Geneva Conventions”, 22 Yearbook of International HUmanitarian Law (2020) 107-124 http://doi-org-443.webvpn.fjmu.edu.cn/10.1007/978-94-6265-399-3_5

 “Article 33: Rights and Privileges of Retained Personnel”, in ICRC Commentary on Geneva Convention III relative to the Treatment of Prisoners of War, Cambridge University Press, online version (2020) available at: https://ihl-databases.icrc.org/applic/ihl/ihl.nsf/Comment.xsp?action=openDocument&documentId=B84D4E66A2A0310AC1258585003A3B61

Published during the past five years

Journal Articles

Article in Journal: The Legal Fog of an Illusion: Three Reflections on “Organization” and “Intensity” as Criteria for the Temporal Scope of the Law of Non-International Armed Conflict

“Human Enhancement Technologies and International Law”, 92 International Law Studies 432-482 (2016), available at http://stockton.usnwc.edu/ils/vol92/iss1/14/ (with Heather Harrison Dinniss)

Chapters in books

Attacks against works or installations containing dangerous forces

Military Collaterals and Ius In Bello Proportionality

Superfluous injury or unnecessary suffering

“Sources of the Law of Armed Conflict”, in Tim McCormack and Rain Liivoja, Routledge Handbook of the Law of Armed Conflict, Routledge (2016) 71-88

“Article 28: Retained Personnel”, in ICRC Commentary on Geneva Convention I for the Amelioration of the Condition of the Wounded and Sick in Armed Forces in the Field, Cambridge University Press (2016) 764-785; online version available at: https://ihl-databases.icrc.org/applic/ihl/ihl.nsf/Comment.xsp?action=openDocument&documentId=047CC844E1EA1E35C1257F7A005585AF

Collection (Contributor or Editor)

Tallinn Manual 2.0 on the International Law Applicable to Cyber Operations

Oslo Manual on Select Topics of the Law of Armed Conflict (2020)

André Nollkaemper & Ilias Plakokefalos (eds.), The Practice of Shared Responsibility in International Law, Cambridge University Press (2017) 1152 pp (co-editor of the International Military Operations cluster, Chapters 23-30)

International Law Association Study Group, ‘The Conduct of Hostilities and International Humanitarian Law – Challenges of 21st Century Warfare’, available at: http://www.ila-hq.org/index.php/study-groups?study-groupsID=58 and reproduced in 93 International Law Studies (2017) 322-388 available at http://digital-commons.usnwc.edu/ils/vol93/iss1/12/ (as member of the study group)


[last updated 1 April 2021]