This special episode features the talk by Professor Mary Ellen O’Connell from the Kroc Institute for International Peace Studies, which she gave at the inaugural Peter Wallensteen Lecture on 20 May 2025 in Uppsala. This new lecture series honours our founder Professor Peter Wallensteen.

The talk begins with a critique of the current reliance on deterrence theory. Professor O’Connell then proceeds to argue how AI research and state funds should be reoriented from deterrence towards self-defence based on the principles of international law. We found the talk thought-provoking and hope you too will find it stimulating!

Mary Ellen O’Connell is the Robert and Marion Short Professor of Law and Professor of International Peace Studies—Kroc Institute for International Peace Studies at the University of Notre Dame, USA. Her work is in the areas of international law on the use of force, international dispute resolution, and international legal theory. Her current work is on AI in the military domain.

After several decades of relative stability, many now question the health of the global nuclear order. In this episode, Dr. Stephen Herzog offers his take on the impact of the Russian war in Ukraine, the rise of China, and recent shifts in US foreign policy under Trump. Is the nuclear taboo eroding? Will more countries acquire nuclear weapons? Are key non-proliferation and disarmament treaties under threat? Stephen has done extensive research on these topics and published many influential papers. In fact, we were so impressed with his thorough, innovative, and surprisingly optimistic analysis that we decided to make this an extended episode!

Dr. Stephen Herzog is Professor of the Practice at the James Martin Center for Nonproliferation Studies, based at the Middlebury Institute of International Studies at Monterey. He is the Academic Co-Chair of the Harvard-MacArthur Foundation Beyond Nuclear Deterrence Working Group. Professor Herzog has been involved with the Alva Myrdal Centre's Working Group 1 on Nuclear Negotiations since it began and is a frequent guest lecturer for the AMC's academic programming for students at Uppsala University. He has published widely in scholarly and policy journals and holds a PhD In Political Science from Yale University. Before returning to academia, Dr. Herzog was a nuclear arms control official working for the US Department of Energy.

This episode is produced in cooperation with the Alva Myrdal Centre for Nuclear Disarmament. It is hosted by Communications Officer Joakim Palmén.

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Here are some of Stephen’s publications, which also served as background for the episode:

This article offers a broad discussion of the Russo-Ukrainian War's implications for the global nuclear order: https://doi.org/10.1080/00396338.2022.2103255

This chapter assesses how Russia's war on Ukraine will affect prospects for nuclear disarmament and the Treaty on the Prohibition of Nuclear Weapons (TPNW): https://www.amacad.org/publication/altered-nuclear-order-wake-russia-ukraine-war/section/2

This article describes the role that China could play in helping to stabilize the global nuclear order: https://doi.org/10.1080/10402659.2024.2401058

In this episode Siri Jansson discusses the joys and challenges of creating the Alva Myrdal Centre’s new database on arms control agreements, AMC data. Siri offers fascinating insights on how visuals have been an integral part of the project since its inception. We also get a sneak peek of what’s next for the AMC Data team! Check out AMC Data: https://amcdata.uu.se/en