This official U.S. Navy map illustrates the Battle of Leyte Gulf (referred to here as the 'Second Battle of the Philippines'), fought October 23-25, 1944, the largest naval battle of World War II. It traces the converging Japanese fleets and the opposing U.S. Third and Seventh Fleet forces, including the escort carrier groups off Samar, one of which included USS Petrof Bay (CVE-80), whose crew faced a Japanese surface force many times their strength in the pivotal Battle off Samar. Project: 218459