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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Syria Still Has Chemical Weapons

Greg Koblentz, member of the Center’s Scientists Working Group of Chemical and Biological Threats, co-authored an op-ed in Foreign Affairs about eradicated the Syrian chemical weapons arsenal. The overthrow of Syrian President Bashar al-Assad after 13 years of civil war happened more quickly and with far less bloodshed than anyone expected. It was especially surprising that […]

Does Putin’s New ‘Oreshnik’ Missile Transform Rules of Nuclear Warfare?

Senior Policy Director John Erath spoke with Newsweek about Russia’s Oreshnik hypersonic missile. Newsweek spoke to John Erath, senior policy director for the Center for Arms Control and Proliferation, about whether Russia’s use of the Oreshnik could change the rules of nuclear warfare. “Not at all,” he said. “They already have the capability to deliver nuclear weapons […]

Final Summary: Fiscal Year 2025 National Defense Authorization Act (H.R. 5009)

Updated December 18, 2024 Table numbers in parentheses are increases or decreases from the FY25 Request  FY25 requested levels come from the Center for Arms Control and Non-Proliferation’s Fiscal Year 2025 Defense Budget Request Briefing Book  Numbers may not add due to rounding  Total National Defense Discretionary Spending Request (050)  DOD Nuclear Weapons Funding Request […]

Map Shows Safest US States to Live During Nuclear War

Senior Policy Director John Erath spoke with Newsweek about safety in a nuclear war. “While those who live near military facilities, ICBM silos in the Midwest or submarine bases along the coasts might bear the most immediate and severe consequences of a nuclear attack, there’s no question: ANY nuclear war or weapons detonation would be bad […]

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