Tag Archives: Bletchley Park

This week in the War, 12–18 January 1942: U-boats begin Operation Drum Roll

This week in the war, on 12 January 1942, the U-123 sank the British steamer Cyclops near Cape Cod. The sinking marked the opening of Doenitz’s U-boat offensive in the western Atlantic—his so-called Operation ‘Drum Roll’ (Paukenschlag). Before the end … Continue reading

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