Veteran Wang Sheng retells his experience in the Chinese People's War of Resistance against Japanese Aggression to primary school students attending a commemorative event marking the 82nd anniversary of the beginning of nationwide war at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, east China's Jiangsu Province, July 7, 2019. (Xinhua/Ji Chunpeng)