Undated file photo shows women and children killed in air-strikes by Japanese army in China. In the wartime of Japanese aggression to China during World War II, around 2.2 million Chinese children were killed or injured by Japanese invaders. Chinese children suffered from the disruption of homes, the threat of death and the loss of parents. The crimes committed by Japanese army brought events to a child's life which they shouldn't live through. (Xinhua)
