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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United States

Where Are All the Nuclear Bunkers?

Since Russia launched its invasion of Ukraine in late February, concerns over the potential use of nuclear weapons have grown. Specially designed ...
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Russia

Russia Releases Incredibly Detailed Views Of Its Massive ‘Satan’ Missile

Russian state media outlets have offered unprecedented looks at the payload bus for the R-36M2 intercontinental ballistic missile, or ICBM, where the ...
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Russia

No, The US Military Has Not Been At DEFCON 2 Since Russia’s Invasion

How can we say this with such certainty? Continue reading to learn why high alert levels are both short-lived and impossible to ...
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Announcements

DEFCON Warning System – Update 11/28/22

This is the DEFCON Warning System. Alert status for 9 P.M. UTC, Monday, November 28th, 2022.  Condition code is Green.  DEFCON 5. ...
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Ongoing Geointel and Analysis in the theater of nuclear war.

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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.