All nuclear weapons resources
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Japan and Hair-Trigger Alert
Removing hair-trigger alert would be actively supported—not opposed—by Japanese leaders and the Japanese public.
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China’s Nuclear Weapons Strategy
China’s nuclear weapons serve a very limited role in Chinese security strategy.
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Close Calls with Nuclear Weapons
Close calls have nearly led to the launch of nuclear weapons—and the risk is still there. Learn about past incidents and current issues here.
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![](/sites/default/files/styles/thumbnail/public/images/2014/10/nuclear-people-obama-speech.jpg?itok=vYG6oqeV)
Leaders Urge Taking Weapons Off Hair-Trigger Alert
A surprising number of high-level politicians and generals have called for an end to hair-trigger alert.
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Frequently Asked Questions about Hair-Trigger Alert
Hair-trigger alert is a risky and outdated policy with serious implications for U.S. security.
Explainer
![NASA mission satellite.](/sites/default/files/styles/thumbnail/public/images/gw-nasa-earth-science-mission-satellite.jpg?itok=sA04_Dh3)
What Are Satellites Used For?
From television and telephones to safety and science, we use satellites every minute of every day.
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![Vertical cross section of Waste Isolation Plant in New Mexico](/sites/default/files/styles/thumbnail/public/2019-10/excess-plutonium-thumb.jpg?itok=gCucMNfo)
Excess Plutonium Disposition
In 2000, both the United States and Russia agreed to dispose of a significant fraction of their excess plutonium—but so far they haven’t.
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![](/sites/default/files/styles/thumbnail/public/images/blog/2015/11/south-korea-us-obama-1-1024x766.jpg?itok=aoX_vDh-)
Progress on Nuclear Arms Control
Leaders have cut nuclear arsenals to levels not seen since the 1950s—but more remains to be done.
Explainer
![Nuclear launch control console.](/sites/default/files/styles/thumbnail/public/2022-07/1500-900-nuclear-launch-panel.jpg?itok=tQzIQ1cA)
What is Hair-Trigger Alert?
Hundreds of US nuclear warheads are kept ready to launch within minutes—making us less safe, not safer.
Explainer
![Nuclear space satellite.](/sites/default/files/styles/thumbnail/public/images/nuclear-space-tdrs-satellite-1.jpg?itok=SqOKtgXs)
Space Security
Smart planning and thoughtful safeguarding—not weaponization—will protect US interests in space.
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![Artist's conception of ASAT weapon in operation](/sites/default/files/styles/thumbnail/public/2019-10/asat.jpg?itok=dT_BaG5W)
China's ASAT Program
Learn about China's ASAT program, including a translation from a 2003 Chinese military textbook that outlines China's missile and space strategies.
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Workshop on U.S. Nuclear Weapons Safety and Security
Policy recommendations from experts on nuclear weapons safety and security.