See images of Nagasaki, Japan after the atomic bomb was used during World War II. As the war in Europe was drawing to a close, the fighting in the South Pacific continued. American troops would suffer heavy losses at the battle of Okinawa, and with a planned invasion of Japan in sight, casualties of 5-10 million were estimated. Japan’s leaders refused to surrender. President Truman ordered the use of the atomic bomb. On August 6th, Hiroshima was bombed. Japan still refused to surrender, and on August 9th, a second bomb was dropped on Nagasaki. In Hiroshima, 40,000 men, women, and children were killed instantly, and 100,000 died from radiation not long after. Japan surrendered on August 15.