Nuclear Issues

Though nuclear weapons have not been used since 1945, their threat is omnipresent when nuclear powers join the battlefield. CSIS scholars analyze key nuclear policy issues including deterrence, escalation, and arms control.

Photo: Simon Dawson/Bloomberg/Getty Images

Photo: Simon Dawson/Bloomberg/Getty Images

Will the U.S.-Saudi Nuclear Deal Proceed?

President Trump's last-minute link between the U.S.-Saudi nuclear agreement and Israel normalization injects new uncertainty into an already contentious deal.

Commentary by Michael Ratney — July 23, 2026

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Williams

Heather Williams

Director, Project on Nuclear Issues and Senior Fellow, Defense and Security Department
Victor Cha

Victor Cha

President, Geopolitics and Foreign Policy Department and Korea Chair
Alek Jovovic

Alek Jovovic

Deputy Director, Center for the Industrial Base and Senior Fellow, Defense and Security Department
Joseph Rodgers

Joseph Rodgers

Deputy Director and Fellow, Project on Nuclear Issues

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Will the U.S.-Saudi Nuclear Deal Proceed?

President Trump's last-minute link between the U.S.-Saudi nuclear agreement and Israel normalization injects new uncertainty into an already contentious deal.

Commentary by Michael Ratney — July 23, 2026

Betting on America

Is the United States Winning the Fusion Race? Featuring Bob Mumgaard

Bob Mumgaard, co-founder and CEO of Commonwealth Fusion Systems, joins Navin Girishankar to discuss whether fusion can usher in an era of virtually limitless clean energy—and whether the United States will lead the way.

Podcast Episode by Navin Girishankar — July 22, 2026

Photo: iLab/CSIS

Nuclear Armed Hypersonic Missiles | HTK

Please join the CSIS Defense and Security Department for a discussion on nuclear armed hypersonic missiles and whether the United States should reconsider its longstanding hypersonic policy.

Event — June 18, 2026

Friendly Proliferation

While nonproliferation has long been a central pillar of U.S. alliance management, recent foreign policy shifts have renewed debates on “friendly” proliferation. This report deconstructs these discussions to deepen understanding between the United States and its allies.

Report by Astrid Chevreuil — June 9, 2026

China’s Nuclear Energy Priorities Under Its 15th Five-Year Plan

China's 15th Five-Year Plan has far-ranging implications for the nuclear energy, not only for the future of global nuclear sector but also for China’s influence and competitiveness in innovation and supply chains.

Report by Jane Nakano and Yu-Hsuan Yeh — May 11, 2026