Zheng Yimei (1st R, front), director of the Student Center of the Marco Polo Bridge Education Group, leads students to make a solemn vow at a ceremony to mark the 86th anniversary of the "September 18 Incident" at the Museum of the War of Chinese People's Resistance against Japanese Aggression in Beijing, capital of China, Sept. 18, 2017. On September 18, 1931, the Japanese Kwantung Army stationed in northeast China destroyed a section of the railway near Liutiaohu and then falsely accused the Chinese military of causing the explosion. Using this as a pretext, the Japanese then bombarded Shenyang and began invasion of northeast China. (Xinhua/Luo Xiaoguang)
