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An Ohio-class Navy submarine surfaces out of the ocean off the coast of the Bahamas.
The USS Florida sails during "Giant Shadow," a Naval Sea Systems Command/Naval Submarine Forces exercise to test the capabilities of the Navy's future guided missile submarines off the coast of the Bahamas.
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Close-up of HMS Thistle submarine wreck
Researchers discovered the remains of the HMS Thistle off the coast of Norway earlier this year.
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The Aurora-80 model
SEAmagine's submersible vessel, the Aurora-80. The company offers submersibles to wealthy clients looking to accessorize their yacht.
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Australia navy submarine
Australian navy submarine HMAS Waller in Pearl Harbor in June 2008.
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Russian Navy's diesel-electric submarine Rostov-on-Don sails in Bosphorus, on its way to the Black Sea, in Istanbul, Turkey February 13, 2022.
Russian Navy's diesel-electric submarine Rostov-on-Don sails in Bosphorus, on its way to the Black Sea, in Istanbul, Turkey February 13, 2022.
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North Korea launches new tactical nuclear attack submarine, according to KCNA.
North Korea launches new tactical nuclear attack submarine, according to KCNA.
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Kim Jong Un announced his plans to prioritize nuclear weapons at the launch of North Korea's "tactical nuclear attack submarine."

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A woman dancing in front of an atomic bomb explosion with the Atomic Energy Commission logo to the left and a snippet of a document stating that the use of explosives is
A composite image showing a nuclear blast, and a logo and promotional writing from the US Atomic Energy Commission.
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Ukrainian serviceman firing a machine gun at a firing range, Donetsk Oblast, Ukraine, March 15, 2023
Ukrainian serviceman firing a machine gun at a firing range, Donetsk Oblast, Ukraine, March 15, 2023