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Russia’s Poseidon underwater weapon reportedly enters the sea, prompting NATO alarm

Russia
First seen: Aug 17, 2026, 4:00 PM UTCUpdated: Aug 17, 2026, 4:00 PM UTC

The headline says Russia’s Poseidon system entered the sea for the first time and describes it as a “Chernobyl submarine.” It also says the development caused alarm within NATO.

The reported deployment of a Russian strategic underwater weapon could increase military tensions between Russia and NATO.

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