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,
Darrell S. Cole was fought between the United States and the Japanese Empire, in February and March 1945 during the Pacific Campaign of World War II. Ground fighting on the island took place over approximately 35 days; lasting from the landings of February 19 to a final Japanese charge the morning of March 26, 1945. The U.S. invasion, known as Operation Detachment, was charged with the mission of capturing the island's airfields. The Japanese positions on the island were heavily fortified, with vast bunkers, hidden artillery, and 18 kilometers (11 mi) of tunnels. On February 19, Sergeant Cole led his machine gun section