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 task force would concentrate all four groups together. Each group would remain distinct but operate in close proximity to the other groups to provide the task force with maximum protection and maximum striking power. The Fast Carrier Task Force worked in conjunction with the other two major components of the Pacific Fleet: the Amphibious Force, which was much larger overall and which carried and provided direct support to the Marine forces, and the Service Squadrons of hundreds of support vessels which resupplied and maintained the fleet. The fleet and task group designation changed when the command of the fleet changed