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In page German submarine U-526:

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The submarine's only patrol was preceded by short passages from Kiel in Germany to Kristiansand then Bergen in Norway over January 1943. She left Bergen and sailed across the North Sea and into the Atlantic Ocean through the 'gap' between Iceland and the Faroe Islands. Following extensive sweeps in the middle of the North Atlantic, she was crossing the Bay of Biscay and had almost reached Lorient when she encountered mines and was sunk. Forty-two men died, but there were twelve survivors.