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During WW2, why were British anti-submarine tactics so inefficient until 1943? By comparison of boats at sea on patrol to boats lost, German U-boat losses were shockingly low. - Quora
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During WW2 did the Allies have any submarines or the equivalent to the German U-boats? Was it Germany the only country involved with that capability? - Quora
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During WW2 did the Allies have any submarines or the equivalent to the German U-boats? Was it Germany the only country involved with that capability? - Quora
German Submarine Activities on the Atlantic Coast
U-boat - Wikipedia
During WW2 did the Allies have any submarines or the equivalent to the German U-boats? Was it Germany the only country involved with that capability? - Quora
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U-boat - Wikipedia
