See inside a WWII-era U-boat, the only submarine that the US Navy captured intact and towed home
Germany's U-505 submarine was the 1st warship captured by the US Navy in over a century and top secret during World War II.
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U.S. Navy announces 4 new nuclear submarines, their sponsors
Jan. 14 (UPI) --The U.S. Navy is building four new nuclear submarines to supplement its aging fleet. "Today's submarine force is the most capable force in the world and in the history of the U.S ...