Third and fourth terms of the presidency of Franklin D. Roosevelt well-defended island of Iwo Jima, taking control of that island the following month. On April 1, the U.S. landed on Okinawa Island, the largest of the Ryukyu Islands. The Japanese allowed the Americans to land on the island before launching a fierce attack that included "kamikaze" suicide attacks by Japanese aircraft. Japanese forces on Okinawa held out until June 1945; U.S. forces suffered over 60,000 casualties during the operation. In late 1943, Roosevelt, Churchill, and Stalin agreed to meet to discuss strategy and post-war plans at the Tehran Conference, which marked Roosevelt's first face-to-face meeting with Stalin. At the conference,
Third and fourth terms of the presidency of Franklin D. Roosevelt attention to the conquest of the Dutch East Indies, which had a large supply of oil. In order to consolidate control of the Dutch East Indies, Japanese military planners believed that they needed to capture the Philippines, take control of the British base at Singapore, and defeat the United States Pacific Fleet, which was stationed at the Hawaiian naval base at Pearl Harbor. No Japanese leader saw the total defeat of the United States as a feasible outcome, but many hoped that a decisive naval victory would convince the Americans to leave control of the Pacific to Japan. Prime Minister