Gregory M. Reichberg

Research Professor

Gregory M. Reichberg
Work phone: +47 22 54 77 53
Mobile phone: +47 40 28 62 22
Twitter: @GregReichberg
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Research Interests

Issues at the intersection of peace, war, philosophy and religion.  


Gregory M. Reichberg is Research Professor at the Peace Research Institute Oslo (PRIO) and Adjunct Professor in the Department of Political Science at the University of Oslo. He heads the Oslo-based Research School on Peace and Conflict (a consortium that offers doctoral courses) and is an associate editor of the Journal of Military Ethics.  

From 2009-2012 he was director of the PRIO Cyprus Centre in Nicosia, where he coordinated research and dialogue activities on the search for a political settlement to the island's division. Over the last ten years he has been engaged in religious dialogue on social/political issues in Iraq and other settings. 

Reichberg's published work includes a monograph Thomas Aquinas on War and Peace (Cambridge University Press, 2017), and several co-edited volumes: Religion, War, and Ethics: A Sourcebook of Textual Traditions (Cambridge University Press, 2014); World Religions and Norms of War (United Nations University Press, 2009); and The Ethics of War: Classic and Contemporary Readings (Blackwell Publishing, 2006). 

In 2018 his published essays include: "Historiography of Just War Theory," in Oxford Handbook of the Ethics of War"; "Charles Journet on the Impossibility of Christian Holy War," in Nova et Vetera (English edition); "Jacques Maritain–Christian Theorist of Non-Violence and Just War, in Journal of Military Ethics"Threats and Coercive Diplomacy: An Ethical Analysis(with Henrik Syse), in Ethics and International Affairs; and "Reframing the Catholic Understanding of Just War: Two Contrasting Approaches in the Inter-War Period," in Journal of Religious Ethics.   

PRIO Projects



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