The Battle of the Atlantic was crucial to victory in the Second World War. If the German U-boats had prevailed, the maritime artery across the Atlantic would have been severed. Mass hunger would have consumed Britain, and the Allied armies would have been prevented from joining in the invasion of Europe. There would have been no D-Day. Using fascinating contemporary diaries and letters, from the leaders and the sailors on all sides, Dimbleby maps the human stories, the intelligence breakthroughs and the strategic daring of this turning point in European history.
