Japanese air attacks on the Mariana Islands commandos undertook intensive training at Saitama Kanto and the raid was scheduled to take place on January 17, 1945, but was canceled after damage to the airfields at Iwo Jima. The Giretsu Airborne Unit instead attacked a U.S. airbase at Okinawa on 24 May, destroying nine aircraft and damaging another 29. Following the perceived success of the raid on Okinawa the IJN developed plans for a force of naval commandos to attack airfields in the Marianas. On June 24, it issued orders for a raid involving 30 Yokosuka P1Y "Frances" bombers and 20 G4Ms carrying naval commandos. The plan, Operation
History of Bougainville the 3rd Marine Division landed on the west coast of Bougainville. Shortly afterwards the Battle of Empress Augusta Bay was fought between cruisers and destroyers of the U.S. Navy and the Imperial Japanese Navy. The Americans routed the Japanese and took control of the seas in this area. A concerted Allied land offensive between November 1943 and April 1944 was needed to occupy and hold the part of the island along the western shore in an area called "Torokina". The Americans set about establishing a wide defensive perimeter, draining swamps, and building multiple airfields for defence. Their next goal was