ダウンフォール作戦
In Okinawa, General Douglas MacArthur begins the first phase of Operation Downfall, the invasion of Kyushu (codenamed Olympic), followed by an invasion of Honshu (codenamed Coronet) with the ultimate goal of capturing Tokyo. They are initially set back by the typhoon season, however Allied forces land on Kyushu on X-Day, suffering heavy losses from Japanese guerilla warfare, kamikaze attacks, Kairyu submarines, and Kaiten human torpedoes.