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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Korea

3 moves needed to counter North Korea’s surging missile threat

This story originally was published by Real Clear Defense. Failing on missile defenses for the homeland is not an option, and North ...
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Russia

The world is worried Putin is about to invade Ukraine. Here’s why

President Vladimir Putin is being watched closely by experts and officials who fear Russia might be planning a military escalation with its ...
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China

Can the United States Overcome These 4 Nuclear Challenges?

Four new geostrategic realities are challenging U.S. deterrent and arms control strategy. These are the rise of China’s nuclear forces; the near-completed ...
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China

China’s Weaponization of Space

Space satellites have become strategic assets and therefore valuable military targets. “Beijing is working to match or exceed US capabilities in space ...
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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.