Professorial Fellow

Janina Dill

  • I am the Dame Louise Richardson Chair in Global Security.
  • My research concerns the role of law and morality in international relations, specifically in war.
  • I enjoy that students are excited about better understanding the world.
  • I study the perceptions of conflict affected populations, including in Iraq, Gaza and Ukraine.


My research concerns the role of law and morality in international relations, specifically in war. I develop legal and philosophical theories about how international law can be an instrument of morality in war, albeit an imperfect one. I also study how normative considerations shape public opinion on the use of force and the attitudes of conflict-affected populations. I currently co-convene a research project on the "Law and Ethics of Nuclear Deterrence," which is part of the Research Network on Rethinking Nuclear Deterrence, funded by the MacArthur Foundation. One of my ambitions is to make nuclear policies compliant with international law, which hopefully raises the threshold for nuclear use.


I mostly teach graduate students in the Blavatnik School of Government in subjects related to Global Security.

Selected Publications

Janina Dill, Marnie Howlett, Carl Müller-Crepon. 2023. At Any Cost: How Ukrainians Think about Self-Defense Against Russia, American Journal of Political Science, forthcoming.

Janina Dill, 2023. Threats to State Survival as Emergencies in International Law, International Theory, Vol. 15 (2), pp. 155-183.

Janina Dill, Scott D. Sagan, Benjamin A. Valentino, 2023, Public Opinion and the Nuclear Taboo Across Nations: An Exchange – The Authors Reply, Security Studies, Vol. 31 (1), pp. 195-204. 

Janina Dill, Scott Sagan, Benjamin Valentino, 2022. Inconstant Care: Public Attitudes towards Force Protection and Civilian Casualties in the United States, United Kingdom and IsraelJournal of Conflict Resolution, Vol. 67(4) 587–616. 

Janina Dill and Cécile Fabre, 2022. Introduction to a Symposium on War by Agreement: A Contractarian Ethics of War by Yizthak Benbaji and Daniel StatmanLaw and Philosophy, Vo. 41, pp. 663-669. 

Janina Dill, Scott Sagan, Benjamin Valentino, 2022. A Kettle of Hawks: Public Opinion on the Nuclear Taboo and Non-Combatant Immunity in the United States, United Kingdom, France, and Israel, Security Studies, Vol. 31 (1), pp. 1-31.

Janina Dill and Livia I. Schubiger, 2021. Attitudes toward the Use of Force: Instrumental Imperatives, Moral Principles and International LawAmerican Journal of Political Science, Vol. 65 (3), pp. 612-633.

Ziv Bohrer, Janina Dill, Helen Duffy. 2020. Law Applicable to Armed Conflict (2020)

Janina Dill, 2019. Distinction, Necessity and Proportionality: Afghan Civilians' Attitudes Towards Wartime Harm, Ethics and International Affairs, Vol. 33 (3), pp. 315-342. 

Janina Dill, 2019. Do Attackers have a Legal Duty of Care? Limits to the 'Individualisation of War'International Theory, Vol. 11 (1), pp. 1-25. 

Janina Dill. 2015. Legitimate Targets? International Law, Social Construction and US Bombing (Cambridge University Press)