Early on June 29, 1942, the 8,032-ton British steam tanker HMS Empire Mica cruised east through calm waters toward Key West, ...

OWI’s report last week that U.S. merchant-marine casualties in one year of war had reached 3,200 or 3.8% of the crews* underlined the gravity of the U-boat campaign—a campaign which may yet ...

The German submarines – the "U-boat peril" as Churchill had called them - had been the Allies' principal threat at sea during ...

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Patently, since his only hope of winning the war is to choke the Allies’ flow of supplies, Hitler was throwing his strength and all his ingenuity into his U-boat campaign. South Africa reported ...

"Importantly for the Allies, had it not been for the experience gained in 1917 and 1918 in particular, the campaign against the U-boats in World War II would have proven more of a challenge," he said.

NORFOLK, Va. — It goes down as one of the most deadly campaigns of World War II, yet it remains one of the least told tales. Exactly 83 years ago, Nazi Germany launched "Operation Drumbeat," the ...

Deep-sea divers hunt for the wrecks of Hitler’s dreaded U-boat fleet off the north west coast of Ireland, while historians unravel the early stages of World War II’s longest campaign.

Show more World War II’s longest campaign was fought in the Atlantic Ocean. Hitler’s U-boats hunted in packs, chasing down the convoys which were bringing vital supplies to Britain.