Monument to Bohdan Khmelnitsky with St. Sophia Cathedral in the background in Kyiv, Ukraine (Src: Shutterstock)

Putin’s War with Ukraine: Voices of CNS Experts on the Russian Invasion

A compendium of CNS expert analysis and commentary on the nuclear ramifications of the war, as well as educational materials for expert and general audience.

CNS Locations: Monterey, CA

CNS Visiting Fellow program now available to French and U.S. nationals!

CNS is excited to announce the program with the aim of fostering strong French and U.S. cooperation in science, technology and related policies.

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Why States Join Multilateral Nuclear Arms Control, Nonproliferation, and Disarmament Treaties

Dr. Stephen Herzog publishes book chapter in volume on nuclear negotiations.

Atomic Responsiveness: How Public Opinion Shapes Elite Beliefs and Preferences on Nuclear Weapon Use

Dr. Stephen Herzog and co-authors investigate how varying levels of public support shape U.S. and U.K. policymakers’ willingness to endorse nuclear use.

Peter Goosen

Tribute to Ambassador Peter Goosen: A Disarmament and Nonproliferation Hero

Retired South African Ambassador Peter Goosen, one of the heroes of the 1995 and 2000 NPT Review Conferences, and a legend in nonproliferation and disarmament diplomacy, passed away on November 4, 2025.

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Now Accepting Applications: Pilot Course on Radiological Security for Policy Students and Professionals

Graduate students and professionals—particularly from non-technical fields—to learn radiation and radiological security in this comprehensive program.

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Call for CNS Visiting Fellows program applications

CNS invites qualified candidates to apply for the Spring and Fall 2026 Visiting Fellows program.

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Reliable Not Reckless

Dr. Stephen Herzog and co-authors analyze how global publics viewed the Biden administration’s extensive but restricted military aid to Ukraine in 2022-2023.

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Finally a Functional Regime: the reconvening of the Nuclear Suppliers Group in the 1990s.

Dr. Ian Stewart, CNS’s Executive Director in Washington, DC, has published a new article in the Journal of Strategic Trade Control.

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Better know a non-nuke: Iraq

Dr. Stephen Herzog discusses the Iraq case and lessons for nuclear nonproliferation and verification on IISS podcast.

Center for Nonproliferation Studies Opens Vermont Office

The office’s opening will allow for more collaboration between Vermont students and the CNS program.