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The Stealthy U-Boat Attack That Crippled Britain

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The Stealthy U-Boat Attack That Crippled Britain

Short | 03:46

Under the cover of night in October 1940, German U-99 submarines ambushed an Allied convoy en route to Britain with supplies. Beyond the tragic aftermath, this stealthy strategy had a lasting impact on nautical warfare.

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The wolfpack tactic was made famous by Admiral Karl Donitz, Hitler's mastermind of submariners. His strategy: to send teams of U-boats to bear against the convoys of ships heading from Canada to Britain, cut maritime lifelines, and starve the enemy into defeat. Take a deep dive into the North Atlantic as we go above and below sea level to relive one of the first attacks of Donitz's lethal subs in 1940, headed by leader of the pack Commander Otto Kretschmer. Then follow Britain's war strategists as they race to combat this new deadly attack.

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