“七七”事变以后，日军疯狂地吞食着中华大地。1937年10月，5万日军沿正太铁路西进，向忻口、太原等重要城市发起猛烈进攻。守卫忻口的国民党卫立煌部队在与日军激战数日后，伤亡惨重，忻口即将沦陷，情况极其危急。　　这时，八路军129师师长刘伯承，为了配合国民党军保卫忻 After the “Seventy-Seven” Incident, the Japanese army devoured the vast land of China frantically. In October 1937, 50,000 Japanese troops proceeded westward along the Zhengtai Railway and launched a fierce attack on major cities such as Xinkou and Taiyuan. Guards KMT Wei Lihuang forces guarding the mouth after fighting with the Japanese for several days, suffered heavy casualties, Xin mouth is about to fall, the situation is extremely critical. At this time, the 129th Division of the Eighth Route Army Liu Bocheng, in order to cooperate with the Kuomintang army security Xin