Project on Nuclear Issues

Founded in 2003, PONI is the premier networked community of next generation professionals prepared to meet the nuclear challenges of the future

PONI programs provide creative opportunities for emerging experts from a wide range of backgrounds to learn about nuclear issues and engage thoughtfully with the nuclear community. PONI also conducts cutting-edge research and analysis on three main topic areas: deterrence and escalation, risk reduction and arms control, and disarmament.

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Next Generation Nuclear Network

CSIS launched the Project on Nuclear Issues in 2003 to develop the next generation of policy, technical and operational nuclear professionals through outreach, mentorship, research and debate.

Photo: CSIS

Photo: CSIS

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Photo: iLab/CSIS

Photo: iLab/CSIS

Game On: Opportunities for Euro-Atlantic Strategic Stability and Arms Control

Europe is likely to remain a theater of instability despite pressure for a peace settlement in Ukraine. As the United States shifts toward the Indo-Pacific and Russia continues to pursue its territorial ambitions, what might arms control look like after the war in Ukraine?

Report by Heather Williams, Nicholas Adamopoulos, Lachlan MacKenzie, and Catherine Murphy — April 21, 2025

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Featured Project: Deterrence 101

Deterrence 101 is a collection of three thirty-minute long videos that explore core deterrence theory. Each video describes basic deterrence concepts, roots these ideas in a historical timeline, and features interviews with leading nuclear policy experts.

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Audio Briefs

Why Does the United States Need a More Flexible Nuclear Force?

An audio version of “Why Does the United States Need a More Flexible Nuclear Force?,” a new Critical Questions by CSIS's Heather Williams and Lachlan MacKenzie. This audio was generated with text-to-speech by Eleven Labs.

Podcast Episode by Heather Williams and Lachlan MacKenzie — April 3, 2025

Audio Briefs

CSIS European Trilateral Track 2 Nuclear Dialogues

Political shifts and a rapidly changing security environment continue to reinforce the importance of close collaboration and unity between the United States, the United Kingdom, and France as responsible nuclear weapons states and NATO alliance members.

Report by Heather Williams — April 1, 2025

Europe's Nuclear Future

Please join the CSIS Defense and Security Department for a conversation on the future of European rearmament, nuclear deterrence, and transatlantic relations.

Event — March 11, 2025

Can France and the United Kingdom Replace the U.S. Nuclear Umbrella?

As doubts grow over U.S. nuclear commitments, Germany’s new chancellor has sparked debate on whether France and the United Kingdom could provide a European nuclear umbrella. But with strategic and doctrinal hurdles ahead, is Europe ready to reshape its nuclear deterrence?

Critical Questions by Astrid Chevreuil and Doreen Horschig — March 4, 2025

What is the "Iron Dome for America"?

CSIS Defense and Security Department Senior Fellows Tom Karako, Heather Williams, and Kari Bingen discuss the implications of the "Iron Dome for America" executive order for the strategic force. 

Event — February 11, 2025

PONI 2025 Virtual Winter Conference

The Project on Nuclear Issues (PONI) will host its 2025 Virtual Winter Conference on February 11. The theme of this conference is “Strengthening U.S. Alliances and Partnerships.”

Event — February 11, 2025

PONI Live Debate: AI Integration in NC3

Join PONI on January 24, 2025, for a live debate between ASP senior associate Sarah Mineiro and CNAS executive vice president and director of studies Paul Scharre on AI integration in NC3. 

Event — January 24, 2025