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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Announcements

What is the Mission of The DEFCON Warning System?

In this DEFCON Warning System Digest, the Director goes into detail as to what exactly is the mission of The DEFCON Warning ...
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Russia

Ukraine says Putin is planning a nuclear disaster. These people live nearby.

The risk of a major disaster at the nearby Zaporizhzhia nuclear power plant terrifies Nadiya Hez, who lives in an area that ...
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Russia

Do Russian ‘criminals’ now possess tactical nukes?

Many unanswered questions remain about an apparent revolt by a military unit fighting Ukraine for Russia, with many media reports describing it ...
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World

Here’s How Bad a Nuclear War Would Actually Be

We know that an all-out U.S.-Russia nuclear war would be bad. But how bad, exactly? How do your chances of surviving the ...
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The Salvation Army

The official charity of The DEFCON Warning System

Lighthope's Beacon

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Ongoing Geointel and Analysis in the theater of nuclear war.

Opportunity

© 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.