In the early hours of Saturday, October 14th, 1939, just after the outbreak of the War, the Royal Navy suffered a stunning loss. The battleship Royal Oak, stationed inside the main base of the Home Fleet at Scapa Flow, was shaken by a number of explosions. She became a furnace, rolled over and within minutes, had gone to the bottom, with nearly 800 men trapped inside.
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This daring feat of arms was eagerly seized upon by the Nazi propaganda service and they acclaimed Lieutenant Prien of U-47 as their first hero of the War. Hero because he had penetrated the defenses of ‘Impregnable Scapa’, where every previous attempt had failed.
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