In the war of resistance against Japan in Jizhong plain in 1941 "five one" against mopping-up background. At that time, the war of resistance against Japan has entered the phase of strategic stalemate. The first two years, the Eight Route Army division one or two, in He Long, to lead, opened in Hebei Province in the revolutionary base areas behind enemy lines, and made great achievements. However, under the Japanese siege, had to make a strategic adjustment, which he led the one or two division main Long Guan corresponding billion into Taihang Mountain, joining Nie Rongzhen founded the Shanxi-Chahar-Hebei anti-Japanese revolutionary base, leaving only the Northeast Army General Lv Zhengcao insisted the guerrilla struggle in hebei.