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Poseidon: Characteristics of Russia's New Unmanned Submarine Nuclear Weapon

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This year, Russia’s already formidable arsenal of nuclear weapons may receive a new addition in the form Poseidon: a small nuclear-powered drone submarine about 20 meters long that can carry either a conventional payload or a nuclear warhead with a yield of up to two megatons.
Earlier, US officials voiced their fears that Poseidons might wreak havoc on American coastal cities by creating a “nuclear tsunami.”
The following infographic contains all the details about this weapon that are available to the public at this time.
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