The document summarizes the history of Okinawa Island and the Battle of Okinawa that took place from April to June 1945. Okinawa was originally a prosperous trading island but was later invaded by Japanese samurai in 1609. In 1945, the United States led an invasion of Okinawa with support from other Allied countries against Japan. The battle resulted in over 79,000 Japanese deaths as well as over 14,000 civilian deaths and heavy casualties on both sides. The battle marked one of the bloodiest of World War 2 and the largest amphibious assault in the Pacific Theater of Operations.