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,
Japanese aircraft carrier Akagi and contributed significantly to Japan's ultimate defeat in the war. In an effort to conceal the defeat, "Akagi" was not immediately removed from the Navy's registry of ships, instead being listed as "unmanned" before finally being struck from the registry on 25 September 1942. Japanese aircraft carrier Akagi Akagi (Japanese: 赤城 "Red Castle") was an aircraft carrier built for the Imperial Japanese Navy (IJN), named after Mount Akagi in present-day Gunma Prefecture. Though she was laid down as an , "Akagi" was converted to an aircraft carrier while still under construction to comply with the terms of the Washington Naval