People strike the Bell of Peace during a national memorial ceremony for the Nanjing Massacre victims held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)