Center for Arms Control and Non-Proliferation

Center for Arms Control and Non-Proliferation

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Nuclear Issues in the Ukraine Crisis

As the Russian invasion of Ukraine continues into its second year, concerns about a war breaking out between Russia and NATO countries, including the United States, continue. Our experts have answers to your most pressing questions about the nuclear risks involved in this conflict and the potential diplomatic paths forward.

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Next Up in Arms Control

New ideas and new perspectives are critical to strengthening the non-proliferation regime and arms control measures, not just to address our present, but to build a new future. That's why we're proud to launch a new blog series focused on new voices with a new angle on arms control.

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Where do we go from here?

After coming perilously close to losing all constraints on the world's two largest nuclear arsenals, the New START agreement was extended through 2026. But as both countries modernize their nuclear arsenals, the threat of a new nuclear arms race underscores the need for sensible non-proliferation and arms control cooperation.

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Test your nuclear weapons knowledge!

Don’t bomb this quiz about nuclear weapons! What do you know about U.S. and global policy?

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The United States must once again pursue diplomacy with Iran

We can make the United States and the world safer by reentering the JCPOA and putting Iran’s nuclear program back in the box.

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Nuclear-Armed States and Regional Tension

Ongoing proliferation efforts in nuclear-armed countries worldwide have escalated tensions. Transparency about nuclear stockpiles and policies is crucial to keeping us safe.

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Nuclear Crises and Close Calls

Throughout history, nuclear-armed states have almost been driven into nuclear conflict, or almost exploded nuclear weapons, or even lost nuclear bombs. As long as these weapons exist, so does the chance of an accident or crisis.

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A nonpartisan nonprofit dedicated to reducing and eventually eliminating the threats posed by nuclear, chemical and biological weapons through Congressional engagement and public education.

Countries

Learn about stockpiles of nuclear weapons and nuclear material around the globe.

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Fact Sheets

Learn about nuclear weapons, defense spending, critical nuclear weapons treaties and more.

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Experts

Former Members of Congress, diplomats, military officers, scientists and more.

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Podcasts

From Godzilla to missile defense, take 25 minutes to learn more about nuclear weapons issues.

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How Koreans View Nuclear Issues: Lessons From My Visit

By John Erath I spent last week in Korea, courtesy of the 38 North Program of the Stimson Center, in association with the Korea Institute of Nuclear Nonproliferation and Control. I was asked to participate in a workshop and discuss the prospects for U.S. policy following the 2024 Presidential election. The workshop went well, but more […]

Op-ed: North Korean Troops in Russia: What Are They Doing There?

Senior Policy Director John Erath wrote an op-ed in 38 North about North Korean troops in Russia. On October 17, South Korean intelligence disclosed that several thousand North Korean troops had apparently begun training in Russia, presumably for deployment to Ukraine. This was later confirmed by other reporting, including the US Department of Defense. There are several reasons why such an […]

Op-ed: Californians must step up pressure to ensure a full cleanup of toxic Santa Susana lab

Research Analyst Shawn Rostker wrote an op-ed in Cal Matters about toxic nuclear waste at the Santa Susana Field Laboratory. Nuclear cleanup efforts across the U.S. have revealed a grim reality: the nation’s toxic nuclear waste legacy continues to endanger communities while those responsible evade accountability.  At Los Alamos in New Mexico, newly exposed plutonium contamination poses […]

STATEMENT FROM JOHN TIERNEY ON NIHON HIDANKYO WINNING NOBEL PEACE PRIZE

(OCTOBER 11—WASHINGTON) Former Congressman John Tierney, Executive Director of Center for Arms Control and Non-Proliferation, a nonpartisan nonprofit focused on reducing and eventually eliminating nuclear threats through Congressional and public education, released the following statement on behalf of the Board of Directors:  “I applaud the Nobel Committee’s decision to award the Peace Prize to Nihon […]

How Iran breached Israel’s air defence by overwhelming it with missiles

Paul Castleman Fellow Sam Hickey spoke with TRT World about the Iranian missile strikes on Israel. As the missile defence system came under the spotlight, security experts rushed to analyse its weak spots and how it was overwhelmed by the missile barrage. “Iran’s strategy of launching missile barrages is designed to saturate air defence systems and […]

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