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: flashmovie/Adobe Stock

Photo: flashmovie/Adobe Stock

Project Atom 2025: Escalation Management in Acute and Protracted Conflicts in the Indo-Pacific

To generate new thinking on the risks of escalation in the Indo-Pacific, the Project on Nuclear Issues invited a group of experts to develop competing strategies for managing escalation with China.

Report by Heather Williams, Lachlan MacKenzie, Elena Tiedens, Mike Albertson, Matthew R. Costlow, Adam Mount, Kori Schake, and Rebecca Shrimpton — December 3, 2025

Photo: Skórzewiak/Adobe Stock

Strategic Trends 2025

Report by Nicholas Adamopoulos, Diya Ashtakala, Doreen Horschig, Lachlan MacKenzie, Catherine Murphy, Joseph Rodgers, Bailey Schiff, Pranay Vaddi, Heather Williams, and Reja Younis — November 18, 2025

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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
Joseph Rodgers

Joseph Rodgers

Deputy Director and Fellow, Project on Nuclear Issues

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Syria's Chemical Weapons Destruction: It takes a Flotilla

In a few weeks, the U.S. vessel Cape Ray will set sail for the Mediterranean.  This 648-foot long ship will be engaged in serious business once it reaches its destination: destroying some 700 tons of Syrian chemical weapons.  

Critical Questions by Sharon Squassoni and Robert Kim — January 13, 2014

New Nuclear Suppliers

Nuclear energy seemed set for revitalization until the accident at the Fukushima Daiichi nuclear power plant in 2011.

Report by Sharon Squassoni and Jacob Uzman — December 11, 2013

FYSA: For Your Situational Awareness

You can also find links to select upcoming and recent events, publications, media quotes, and multimedia produced by our scholars and staff.

Newsletter by Gregory Sanders, Sharon Squassoni, Samuel J. Brannen, and Kathleen H. Hicks — November 22, 2013

Workshop on South Korea as a Responsible Nuclear Supplier

The Center for Strategic and International Studies and the Asan Institute for Policy Studies cohosted a workshop on “Korea as a Responsible Nuclear Supplier” on February 18, 2013, at the Asan Institute in Seoul.

Report by Sharon Squassoni and Robert Kim — April 30, 2013

Dealing with a Nuclear Iran

Both the Bush and Obama administrations have attempted to end the threat posed by Iran’s nuclear program.

Report by Sharon Squassoni — March 22, 2013

U.S.-South Korean Peaceful Nuclear Cooperation Agreement

This spring, the United States and South Korea will complete their negotiations to renew their peaceful nuclear cooperation agreement, first inked in the 1950s and last amended in 1974. The agreement is set to expire in March 2014 and must be sent to the U.S. Congress in the next few months for approval.

Critical Questions by Sharon Squassoni — February 19, 2013