World War II historian William Y'Blood explains that in the eighteen months between the Spring of 1943, when the escort carriers began to prowl the Atlantic, to November 1944, the average number of U-boats in daily operation was reduced from 108 to a mere 31. Though land-based aircraft, various support groups, and the convoy system itself helped win the Battle of the Atlantic, the escort carrier groups' influence was profound. In addition to documenting the escort carriers' exciting operational history, the author also traces the CVE's development and construction and examines its tactical and strategic uses.