Volcano and Ryukyu Islands campaign Volcano and Ryukyu Islands campaign The Volcano and Ryūkyū Islands Campaign was a series of battles and engagements between Allied forces and Imperial Japanese forces in the Pacific Ocean campaign of World War II between January and June, 1945. The campaign took place in the Volcano and Ryukyu island groups. The two main land battles in the campaign were the Battle of Iwo Jima (February 16-March 26, 1945) and the Battle of Okinawa (April 1–June 21, 1945). One major naval battle occurred, called Operation Ten-Go (April 7, 1945) after the operational title given to it by the Japanese. The campaign
Japanese air attacks on the Mariana Islands the operation was not called off after this raid, it did not go ahead after the Japanese surrender on 15 August. The Japanese military also developed a plan to attack Saipan using Mitsubishi Ki-167 suicide aircraft during August, but nothing came of this. The Japanese attacks on the Mariana Islands during 1944 and 1945 did not seriously disrupt the USAAF's strategic air campaign against Japan. They did, however, force the United States to allocate forces to defend the islands in order to prevent further losses of expensive B-29s. Moreover, due to the high cost of the heavy bombers, the ratio