Photo taken on Aug. 8, 2019 shows a commemorative light beam at the Peace Park in Nagasaki, Japan. Nagasaki was hit by an atomic bomb on Aug. 9, 1945, which prompted Japan's surrender and the end of World War II, making it the second city to have endured atomic bombing after Japan's Hiroshima was hit on Aug. 6 the same year. (Xinhua/Du Xiaoyi)