Submarines came to the forefront of military navies with the advent of WWI, as Germany's dangerous U-boats proved a ...
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World War II submarines that disappeared without a traceSubmarines have since their introduction been key during naval warfare, and indeed played an important role during World War ...
On July 19, 1944, the German submarine U-861 torpedoed the Vital de Oliveira, sinking it and killing about 100 of the 270 ...
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