German U-Boat Captain Laughed At American Sonar — Until His Entire Convoy Vanished Overnight
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YouTubeWW2 Battlefield Report
German U-Boat Captain Laughed At American Sonar — Until His Entire Convoy Vanished Overnight
German U-boat commander Hans-Joachim Hartmann laughed at American sonar technology in March 1943, dismissing it as "the toy that cannot hear beneath the waves." By sunrise on March 17th, his entire nine-submarine wolfpack had been destroyed in a single night—and the Battle of the Atlantic changed forever. This documentary reveals the true ...
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