Eighty-five years ago today, on June 7, 1940 (May 2, 1940 lunar calendar), the anti-" sweep "in the northwest of Jin began. The 120th Division of the Eighth Route Army rushed to the front line June 7, 1940 - the anti-" sweep" in the northwest of Jin began. On June 7, 1940, more than 1,100 Japanese troops assembled in Jingle County, northwest Shanxi Province, attacked Lan County in two directions and began a summer "sweep" of the northwest of Jin. Under the leadership of the 120th Division of the Eighth Route Army, the military and civilians of the Anti-Japanese Base in the northwest of Jin began a difficult anti-" sweep "struggle. Northwest Jin was one of the earliest anti-Japanese bases opened up by the Eighth Route Army behind enemy lines. In September 1937, according to the orders of Mao Zedong and the headquarters of the Eighth Route Army, the 120th Division crossed the Yellow River to the east and entered the Guanshenshan District in the northwest of the Jin Dynasty. With Ningwu and Shenchi as the centers, the masses were organized and armed in Wuzhai, Kolan, Lanxian County, Hequ, Pianguan, Baode and other places to carry out guerrilla warfare. When the summer of 1940 came, the Japanese launched a major "sweep" of the northwest of the Jin Dynasty. At this time, the 120th Division of the Eighth Route Army, led by division commander He Long and political commissar Guan Xiangying, moved from Jizhong to the northwest of the Jin Dynasty. The Kuomintang government stopped supplying the Eighth Route Army's anti-Japanese funds and combat materials, and the human, material and financial resources of the northwest Jin base areas were seriously damaged. Under such circumstances, the 120th Division of the Eighth Route Army still bravely withstood the crazy In this "sweep", the Japanese puppet army dispatched a total of more than 20,000 people, and rushed to the northwest area of Jin according to the heart of the land: The North Face arrived at the pass; the east increased its troops to Wuzhai, Shenchi, Jingle, Hekou, and Gujiao; the Japanese army in the south gathered in Lishi, Dawu, and Liulin, and followed the main force of the 120th Division closely with their absolute superiority. Under this situation, He Long and Guan Xiangying were determined to evade the truth, carry out extensive guerrilla warfare, kill and destroy the enemy as much as possible, and wait for the later stage of the campaign to concentrate their forces and annihilate the Japanese army all the way. At the combat meeting on June 15, He Long formulated a strategy for the enemy: "Combine internal and external lines, fight guerrilla warfare with the enemy, and never fight to the death." In more than a month, the 120th Division and friendly troops fought more than 250 large and small battles with the Japanese army. On June 16, the 120th Division wiped out more than 700 enemies in Miyu Town, Jingle County, and on July 4 at Twenty Miles Shop, Xingxian County. The enemy suffered a heavy blow and forced all the Japanese invaders to retreat. The anti-" sweep "in the northwest of Jin began on June 7. The 120th Division wiped out a total of 4,500 enemies. The anti-" sweep" victory was achieved, and the anti-Japanese base area in the northwest of Jin was further consolidated and expanded. Comments: The Eighth Route Army continued to grow and grow in the war