The DEFCON Warning System™

The World’s Only Public Nuclear Threat Advisory System. Independent, real-time analysis of global nuclear tensions. Since 1984.

DEFCON 4 - Blue

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The latest updates across the globe so you can be informed and prepared.

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Russia

Putin’s Nuclear Threats Are Reaching Beyond Ukraine

As Russian troops suffer setbacks on the battlefields of Ukraine, the Kremlin is more likely to use extraordinary measures to stop the ...
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Russia

Will American Aid to Ukraine Provoke a Russian Nuclear Strike?

On September 15, Russian president Vladimir Putin and Chinese president Xi Jinping convened a joint strategy meeting in Samarkand, Uzbekistan at the ...
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World

Basic Supplies Needed In The Event of Nuclear Attack

The DEFCON Warning System advises citizens in the Ukraine theatre being preparing in the event of a nuclear attack. There is no ...
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Announcements

DEFCON Warning System – Update 9/29/22

This is the DEFCON Warning System. Alert status for 7 P.M. UTC, Thursday, September 29th, 2022.  Condition code is Blue.  DEFCON 4. ...
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© 2026 The DEFCON Warning System. Established 1984.

The DEFCON Warning System is a private intelligence organization which has monitored and assessed nuclear threats by national entities since 1984. It is not affiliated with any government agency and does not represent the alert status of any military branch. The public should make their own evaluations and not rely on the DEFCON Warning System for any strategic planning. At all times, citizens are urged to learn what steps to take in the event of a nuclear attack.