The pursuit of German U-boats in the Battle of the Atlantic has long been considered one of the most exciting stories of World War II. This definitive study takes readers into the cockpits and onto the flight decks of the versatile and hardy U.S. escort carriers (CVEs) to tell of their vital, yet little-known contribution to the anti-U-boat campaign. Sailing apart from the Allied convoys, the CVE captains had complete freedom of action and frequently took their ships on hunt and kill missions against the enemy. The German submarines were allowed no respite and no place to relax without the fear of discovery. 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.