People pose for photos in front of the monument at the atomic bomb hypocenter to commemorate the 72nd anniversary of U.S. atomic bombing in Nagasaki, Japan, Aug. 9, 2017. To accelerate Japan's surrender in World War II, the U.S. forces dropped an atomic bomb on Hiroshima and Nagasaki respectively on Aug. 6 and 9, 1945. (Xinhua/Ma Ping)
