In November 1940, with the approval of the Central Committee, the Eighth Route Army was established in the Northwest Jin Military Region, with He Long as commander, Guan Xiang as political commissar, and Xu Fanting as deputy commander. Why was the Northwest Jinbei Military Region established? Because the main force of the 120th Division of the Eighth Route Army led by He Long returned to northwestern Jin in early 1940, the Japanese army learned of this news and mobilized more than 12,000 troops, divided into six roads, and swept them up; as a result, the Eighth Route Army, under the command of General He Lao, not only killed and wounded thousands of Japanese puppet troops, but also recovered Xingxian, Linxian, Fangshan, Baode, Hequ and other places, greatly increasing the area of the base area and greatly enhancing the anti-Japanese forces.

When the Japanese army saw this situation, it panicked, and quickly mobilized its troops again, and adjusted its tactical methods to carry out a brutal sweep of northwestern Jin, and moreover, it used two elite brigades of the Japanese army, the Third Brigade and the 16th Brigade, to jointly carry out a sweep.
The Eighth Military Subdistrict was operating in the Jiaocheng area of Shanxi Province, and for some reason, they had been attacked by the Japanese again and again since the beginning of 1942. On January 12, the headquarters of the Sixth Regiment of the Eighth Division Army was attacked by the Japanese army and suffered serious losses. On February 16, the second day of the Lunar New Year, the headquarters of the Eighth Division was secretly attacked by the Japanese army, suffering heavy losses, and the deputy commander, Comrade Liu Deming, was unfortunately killed in the battle. Subsequently, the Headquarters of the Five Regiments was secretly attacked, and the Local Organs such as the Jiaoxi County Government were also constantly attacked.
What's going on? In this regard, General Manager He was very angry and ordered the enemy industry department to strictly investigate to see if there were traitors within our army. The results of the investigation found that the Japanese army had set up a team composed entirely of veterans, with more than 100 people, called the Light Commando Team, and the weapons they used were all the most advanced German-style equipment, and they often traveled lightly at night, going tens of miles away, and after finding the command organ of our Eighth Route Army, they suddenly launched an attack in the early hours of the morning. Why were they able to find the command organ of the Eighth Route Army so easily? It turned out that the Japanese army had secret agents hidden in the base area of the Eighth Division, so they followed the eighth route army wherever the command organs went, and the activities were very rampant.
After listening to the report, Mr. He immediately summoned Han Jun, commander of the Eighth Subdistrict (on March 23, 1949, died suddenly due to excessive fatigue, at the age of 37), and ordered him to make up his mind to find fighters and eliminate this group of ghosts at any cost in order to persist in the struggle in the mountainous areas and defend the interests of the masses, and also to avenge Comrade Liu Deming and other martyrs who died.