Submarine Battle of World War 2 – Full Documentary
“The only thing that ever really frightened me during the war was the U-boat peril.” Winston Churchill (Their Finest Hour – The Second World War, Volume II)
Thanks to the Bookshelf Museum for the following video; more information at the site.
The battleship HMS Barham was sunk by U-331 in 1941; the terrifying footage of the moment its magazine exploded demonstrates the carnage of a torpedo strike. 861 crewmen were killed.