From 1939 until 1942, Hitler's U-boats - his 'grey wolves' - threatened to accomplish what his air force had hitherto been unable to achieve: to starve Britain into submission. The struggle for control of the Atlantic was to become the longest, and one of the most bitterly fought campaigns of World War II. For Winston Churchill it was 'the only thing that ever really frightened me during the war'. During the course of five bloody and uncertain years, Britain and her Allies lost more than fifty thousand seamen and fifteen million tons of shipping protecting this lifeline. In 'The Battle of the Atlantic', Andrew Williams vividly describes this intense and strategically vital campaign in the fight for Allied victory. '...an excellent book.' Sunday Express