Pupils visit a historical museum recording the Japanese agression in northeast China in Changchun, capital of northeast China's Jilin Province, Sept. 17, 2015, to mark the 84th anniversary of the "September 18 Incident". On Sept. 18, 1931, Japanese troops blew up a section of the railway under their control near Shenyang, capital of northeast China's Liaoning Province, and then accused Chinese troops of sabotage as a pretext for attack. They bombarded barracks near Shenyang the same evening, beginning a large-scale armed invasion of northeast China. The incident was followed by Japan's full-scale invasion of China and the rest of Asia, triggering the war against Japanese aggression. (Xinhua/Zhang Nan)
