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Planning for the Unthinkable: The targeting strategies of nuclear-armed states

While it is reasonable for governments to keep the most sensitive aspects of nuclear policies secret, the rights of their citizens to have access to general knowledge about these issues is equally valid so they may know about the consequences to themselves and their country.

06.30.25 | 4 min read
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The Two-Hundred Billion Dollar Boondoggle

Nearly one year after the Pentagon certified the Sentinel intercontinental ballistic missile program to continue after it incurred critical cost and schedule overruns, the new nuclear missile could once again be in trouble.

06.24.25 | 17 min read
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Global Risk
Press release
Federation of American Scientists Researchers Contribute Nuclear Weapons Expertise to International SIPRI Yearbook, Out Today

“The era of reductions in the number of nuclear weapons in the world, which had lasted since the end of the cold war, is coming to an end”

06.16.25 | 3 min read
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Raising the Nuclear IQ

Without information, without factual information, you can’t act. You can’t relate to the world you live in. And so it’s super important for us to be able to monitor what’s happening around the world, analyze the material, and translate it into something that different audiences can understand.

06.04.25 | 6 min read
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Global Risk
Press release
Nuclear Notebook: Russian Nuclear Weapons 2025 Federation of American Scientists Unveils Comprehensive Analysis of Russia’s Nuclear Arsenal

Russia currently maintains nearly 5,460 nuclear warheads, with an estimated 1,718 deployed. This represents a slight decrease in total warheads from previous years but still positions Russia as the world’s largest nuclear power alongside the United States.

05.13.25 | 3 min read
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Costs for U.S. Nuclear Weapon Programs Continue to Spiral Out of Control

Nuclear weapons budgeting is like agreeing to buying a house without knowing the sales price, the mortgage rate, or the monthly payment.

05.02.25 | 4 min read
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Half of Operational B-2 Force Deploys to Diego Garcia

The United States Air Force has forward deployed about one-third of its B-2 stealth bombers to Diego Garcia, or about half the B-2s considered fully operational at any given time.

04.02.25 | 2 min read
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Blog
TPNW 3MSP: Overview and Reflections

Over the past year, the campaign to abolish nuclear weapons has experienced numerous wins that were celebrated at the Meeting of State Parties.

03.21.25 | 7 min read
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Global Risk
Press release
Chinese Nuclear Weapons, 2025: Federation of American Scientists Reveals Latest Facts on Beijing’s Nuclear Buildup

China is NOT a nuclear “peer” of the United States, as some contend.
China’s total number of approximately 600 warheads constitutes only a small portion of the United States’ estimated stockpile of 3,700 warheads.

03.12.25 | 3 min read
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Global Risk
Press release
Federation of American Scientists Welcomes Dr. Yong-Bee Lim as Associate Director of the Global Risk Team

Dr. Lim will help develop, organize, and implement FAS’s growing contribution in the area of catastrophic risk including on core areas of nuclear weapons, AI and national security, space, and other emerging technologies.

03.07.25 | 2 min read
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Blog
Delays, Deferment, and Continuous At-Sea Deterrence: The United Kingdom’s Increasing Nuclear Stockpile and the Infrastructure That Makes it Happen 

Moreover, the recent decrease in UK government transparency regarding the status of its nuclear arsenal and modernization program reflects a worrisome global trend.

02.26.25 | 8 min read
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Reawakening a Nuclear Legacy: The Potential Return of the US Nuclear Mission to RAF Lakenheath

Even without weapons present, the addition of a large nuclear air base in northern Europe is a significant new development that would have been inconceivable just a decade-and-a-half ago.

02.26.25 | 2 min read
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