The Battle of the Atlantic

Winston Churchill once wrote that "The only thing that ever really frightened me during the war was the U-boat peril". In saying this, he correctly identified the importance of the threat posed during World War Two by German submarines (the 'Unterseeboot') to the Atlantic lifeline. This lifeline was Britain's 'centre of gravity' - the loss of which would probably have led to wholesale defeat in the war.


Part 1 - Grey Wolves

At the beginning of the war, the `U-boat peril' did not seem to be a huge threat, yet within eighteen months the campaign across the Atlantic threatened to starve Britain into submission.


Part 2 - Keeping Secrets

During the first eighteen months of conflict, German U-boats were to sink more than three million tons of shipping off the American coast, severely damaging the Allied war effort. But by 1941, a vital source of naval intelligence promised to transform the war in the Atlantic, snatching victory from the jaws of defeat.


Part 3 - The Hunted

In the first three years of war, German U-boats threatened to starve Britain into submission, but by the spring of 1943 the tide had turned and the hunter had become the hunted. Eyewitness testimony, archive film and reconstructions illuminate the remarkable story of how, in just months, the Allies destroyed the U-boat fleet.

The Battle of the Atlantic
The Battle of the Atlantic