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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Nuclear

Nuclear Radiation and Frequently Asked Questions About Potassium Iodide

DEFCON Warning System – We are posting this not because there is a possibility of nuclear war, but because there are nuclear ...
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Russia

Blinken says Putin has his sights on countries beyond Ukraine

Secretary of State Antony Blinken said it is obvious Russian President Vladimir Putin has goals beyond Ukraine and may have other countries ...
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Announcements

DEFCON Warning System – Update 2/23/22

This is the DEFCON Warning System. Alert status for 10 P.M. UTC, Wednesday, February 23rd, 2022. Condition code is Blue. DEFCON 4. ...
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Middle East

How America is helping Iran get a nuclear arsenal

As Iran reportedly reaches the brink of obtaining enough fissile material for a nuclear weapon, the Biden administration is now astoundingly colluding ...
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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.