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Gato-class submarine - Wikipedia
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Operation Barney: Bloody payback in the Pacific
Nuclear Submarine Officer recalls when his submarine's periscope
Unrestricted Submarine Warfare, 1917 – 1918
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The War Below: The Story of Three Submarines That Battled Japan
Divers find wreckage of experimental submarine built in 1907 in
Two Royal Navy ships intercept missile-carrying Russian Soviet-era
Russian submarine collided with Royal Navy warship in North
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