United States Navy in World War II was "sunk" at Pearl Harbor. It is correct to say that American industrial might was a deciding factor in World War II, and Admiral Yamamoto knew that a prolonged war for Japan was a losing war. The Battle of Midway, together with the Guadalcanal campaign, marked the turning point in the Pacific. Between June 4–7, 1942, the United States Navy decisively defeated a Japanese naval force that had sought to lure the U.S. carrier fleet into a trap at Midway Atoll. The Japanese fleet lost four aircraft carriers to the U.S. Navy's one American carrier and a destroyer. After Midway,
Fast Carrier Task Force staff rotated out of active command. This allowed the Navy to perform at a higher operational tempo, while giving the Japanese the general impression of naval assets greater than what were actually available. The Fast Carrier Task Force took part in all the US Navy's battles in the Pacific during the last two years of the war. The task groups could operate independently or combine with the others as needs dictated. Raids against island strong points such as Iwo Jima or Chichi Jima might be undertaken by one or two task groups, but when a major operation was underway the