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: Yoan VALAT / POOL / AFP via Getty Images

Photo: Yoan VALAT / POOL / AFP via Getty Images

The Archipelago and the Umbrella: Harmonizing French and NATO Nuclear Deterrence

France’s new “forward deterrence” concept can strengthen European security, but only if Paris coordinates carefully with NATO allies to avoid fragmented signaling, friction over basing, and political anxieties about the U.S. nuclear umbrella.

Commentary by Astrid Chevreuil and Jim Stokes — September 1, 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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PONI 2026 Fall Conference

PONI's Fall Conference convenes rising nuclear experts to examine a strained global nuclear order — the future of arms control, the nonproliferation regime, verification, deterrence, and restraint. 

Event — November 17, 2026

Space Launch Capacity and Contenders | HTK

Please join the CSIS Defense and Security Department’s HTK Series for a conversation about recent developments in U.S. and Chinese space launch capabilities. 

Event — September 9, 2026

The Asia Chessboard

Asia in the New Nuclear Age

Mike is joined by Professor Vipin Narang to discuss the future of U.S. extended nuclear deterrence in Asia.

Podcast Episode by Michael J. Green — September 1, 2026

CSIS The Asia Chess Board

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