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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Battleships

The aim of this Strategy Game “Battleships” is to first place all your ships on the grid where you think the enemy

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3D Reversi

In This Classic 3D Puzzle Game the aim is to own more pieces than your opponent when the game is over. You

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Ongoing Geointel and Analysis in the theater of nuclear war.

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© 2025 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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