On October 6, 1937, Mao Zedong called Zhou Enlai, Zhu De, Peng Dehuai and sued Lin Biao and Nie Rongzhen, put forward strategic supplementary opinions on the North China operation, pointing out that after the enemy occupied Shijiazhuang, it would attack westward. Therefore, the two points of Longquan Pass and Niangzi Pass must gather heavy troops and implement perseverance, so that the main force can win north of Taiyuan; Shanxi is at the last moment and will have to fight a battle.
On October 6, 1940, 1 Hundred Regiments Battle entered the third stage of the anti-"sweeping" operation. The main force of the 120th Division was in Loufan Town, Jingle County (now Loufan Town, Loufan County) to fight against the attack of the Japanese and puppet troops. On October 25, the 3rd and 16th Mixed Brigades of the Japanese Independence were each part of the "sweeping" northwestern Shanxi 2 8th district mountainous areas and 3rd districts Loufan and Miyu Town areas. In the Eighth Military Sub-district, the main forces of the 2nd Column, the Industrial and Health Brigade, and the Hongzhao Corps were insisting on mountain struggles, and sent troops to the outside line, deep into the enemy's occupation of the plains in Jinzhong, destroying bridges and breaking roads, harassing enemy strongholds, cutting off traffic supplies, destroying the enemy's pseudo regime, and cooperating with the mountain anti-"sweeping" operations.
On October 6, 1940, the 21st Regiment of the Industrial and Health Brigade attacked the enemy in Hekou, northwest of Taiyuan (Hekou Town, Gugujiao City), killing more than 10 enemies and capturing more than 20 Japanese troops.
On the evening of October 6, 1940, local armed forces in the Qing Taixu area shot and killed all 10 Japanese troops from Jiyi (now belonging to Qingxu County ), captured the guard captain Gao Ming and more than 40 puppet troops, seized 30 rifles, 24 submachine guns, and 2 pistols.
