Gregory M. Reichberg is Research Professor at the Peace Research Institute Oslo (PRIO).

He leads Warring with Machines: Military Applications of Artificial Intelligence and the Relevance of Virtue Ethics, a four-year project funded by the Research Council of Norway's Research Programme on the Cultural Conditions Underlying Social Change (SAMKUL). 

His writings include a monograph Thomas Aquinas on War and Peace (Cambridge University Press, 2017), named an "Outstanding Academic Title 2017" by Choice magazine.  

He has also published several co-edited volumes, including Robotics, AI, and Humanity: Science, Ethics, and Policy (Springer, 2021); 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). 

His recent publications include a co-authored book chapter "AI in Cyber Operations: Ethical and Legal Considerations for End-Users (in Artificial Intelligence and Cybersecurity, Springer, forthcoming); "Applying AI on the Battlefield: The Ethical Debates" (with Henrik Syse), in Robotics, AI, and Humanity (Springer, 2021); and "Scholastic Arguments for and against Religious Freedom," (inThe Thomist, 2020).

From 2012-2020 he headed the Oslo-based Research School on Peace and Conflict, and 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 fifteen years he has been engaged in religious dialogue on social/political issues in Iraq and other settings. 

In 2021 he was appointed consultor to the Holy See's Dicastery for Promoting Integral Human Development, headquartered in Vatican City. His contribution focuses on disarmament, the ethical implications of new military technologies, and broader issues of war and peace.