The DEFCON Warning System™

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

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Russia

Pentagon wants Moscow back channels to prevent nuclear escalation

February 27, 2022
When Gen. Mark Milley emerged from six hours of tense talks with his Russian counterpart in Helsinki last September, the Joint Chiefs ...
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Announcements

DEFCON Warning System – Update 2/27/22

February 27, 2022
This is the DEFCON Warning System. Alert status for 3:30 P.M. UTC, Sunday, February 27th, 2022.  Condition code is Yellow.  DEFCON 3. ...
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Nuclear

A guide: Nuclear power in Ukraine

February 25, 2022
How big is Ukraine’s nuclear power industry? Ukraine is heavily dependent on nuclear energy, with 15 reactors generating about half of its ...
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World

Tripwire for real war? Cyber’s fuzzy rules of engagement

February 25, 2022
President Joe Biden couldn’t have been more blunt about the risks of cyberattacks spinning out of control. “If we end up in ...
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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.

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