People pose for photos in front of the monument at the atomic bomb hypocenter to commemorate the 71st anniversary of U.S. atomic bombing, at the Peace Park in Nagasaki, on Aug. 9, 2016. To accelerate Japan's surrender in the World War II, the U.S. forces dropped two atomic bombs on Hiroshima and Nagasaki respectively on Aug. 6 and 9, 1945. (Xinhua/Ma Ping)
