1931年9月18日,日本关东军自行炸毁南满铁路柳条湖路段,嫁祸于中国军队,并以此为借口,突然向驻守在沈阳北大营的中国军队发动进攻。日本侵略军实行的要煤不要人、以人换煤的“人肉开采”政策,致使大批中国矿工被折磨而死,凡是日本侵略者使用劳工比较集中的地方,大都有这种“万人坑”。 On September 18, 1931, the Japanese Kwantung Army blew up the section of Wicker Lake on South Manchurian Railway on its own to blame the Chinese army for using it as an excuse to suddenly attack the Chinese army stationed in Shenyang Beidaiying. The Japanese aggressors practiced the principle of “no man being coal” and “man-made mining” policy for people changing coal. As a result, a large number of Chinese miners were tormented and died. Most Japanese aggressors use this type of labor in areas where workers are more concentrated People pit ".