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The Kriegsmarine's U-47 submarine raid at Scapa Flow and sinking of the Royal Oak (WW2)

The German Submarine branch of the Kriegsmarine was one of the most fear-inducing branches of the German military apparatus ...

3 Divers Died to Unravel the Mystery of a Cursed Nazi Submarine—And Rewrite WWII History

The mystery of U-869, a German submarine found 60 miles off New Jersey, took years of risky dives and three deaths to solve.