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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 ...
Big Old Boats on MSN

Watch 1 German submarine sink a Royal Navy battleship - then it disappears forever

U-47 carried out one of the most daring submarine attacks of World War II, slipping into Britain's main naval base and ...
military-stuff

Inside Aberlady Bay Where the Wrecks of Two WW2 Royal Navy Midget Submarines Still Sit

In 1943, Britain faced an impossible enemy. The German battleship Tirpitz was unstoppable—until four volunteers in a ...