On September 3, 1937, Commander He Long led more than 8,200 men of the 120th Division of the Eighth Route Army across the Yellow River to Shanxi. According to the central military commission's strategic plan, he long's 120th division was instructed to march to the Guanjushan area in northwestern Jin and guerrilla attack Datong and Suiyuan; Lin Biao's 115th division turned into the southern section of the Hengshan Mountains and gradually moved south, unfolding in the Taihang and Taiyue mountains; Liu Bocheng's 129th division assembled on the Yellow River, entered the Lüliang Mountains in western Jinxi at an appropriate time, became independent, and let go of development.
After receiving the instructions forwarded by the headquarters of the Eighth Route Army, He Long consulted with Guan Xiangying, Xiao Ke, and other division commanders, and decided that the main force of the division would go to the northwest of Jin to monitor the Japanese troops moving south from the north of Datong and Yan, and wait for an opportunity to attack the enemy. In order to grasp the initiative, in addition to Wang Zhen's 717th Regiment of the 359th Brigade temporarily dispatched by the headquarters of the Eighth Route Army, the remaining strength of the whole division was divided into two operations: Song Shilun, commander of the 716th Regiment of the 358th Brigade, led a detachment of more than 900 people, went deep into the enemy-occupied areas in the rear of Yanbei to fight guerrilla warfare and delay the Japanese attack in the direction of Shenchi and Ningwu; the main force of the division went to Shuo County and Ningwu respectively to contain the Japanese army and seek opportunities to annihilate the enemy.
Just as the main force of the 120th Division was unfolding to the northwest of Jin, the Battle of Xinkou organized by the Second Theater of Operations began, and the situation in Shanxi was extremely tense. On the orders of the headquarters of the Eighth Route Army, He Long scattered all the men and horses in his hands and took the initiative to attack along the two lines from Yanmen Pass to Xinkou and from Fanzhi to Xinkou, cutting off the Japanese transportation line and cooperating with the friendly forces in Xinkou.
After the Song Shilun detachment moved north, He Bingyan succeeded him as the commander of the 716th Regiment of the 358th Brigade, and liao Hansheng, the political commissar, was ordered to take 2 battalions to Yanmen Pass to attack the Japanese communication line. When He Bingyan was 9 years old, he threw himself into the Wudang Mountains to learn the Ling Xiao Sword Technique under the Qing Dao Changmen, and later changed to the Xuan Xuan Sword Technique, thus practicing a good sword technique. At the age of 16, he joined the Red 4 Army led by He Long in Xiang'ebian, fought bravely, was wounded many times, and rose from soldier to division commander.
On the way north to the Long March of the Red Second and Sixth Armies, He Bingyan, who was the commander of the Red 5th Division, led his troops to open the way for the whole army. After the fierce battle of Wawutang, He Bingyan was wounded for the sixth time in his life, and his right arm was blown into a crushing fracture by a shell. Due to the urgency of the war, the doctor had to sterilize him with an old saw that cut wood and amputated his leg. He Bingyan did not play morphine, his mouth was hard and stiff, and he underwent 3 hours of hellish surgery, which made the medical staff next to him admire. He Long personally came to visit He Bingyan and collected two pieces of broken bones sawn off He Bingyan's arm. This became a vivid teaching material for He Long to mobilize the troops for battle later: "Look, this is the bone of The Iron Han He Bingyan!" ”
After He Bingyan and Liao Hansheng led their troops to Yanmen Pass, they surveyed the terrain and decided to set up an ambush on the high ground on the west side of the Heishigou Highway on the south side of the pass. On 18 October, the 716th Regiment ambushed a Japanese convoy full of soldiers and ammunition advancing from north to south. After fierce fighting, more than 20 cars were destroyed and about 300 Japanese troops were wiped out. Since the other Japanese army happened to arrive, the 716th Regiment took the initiative to withdraw from the battle. Two days later, He Bingyan and Liao Hansheng led the 716th Regiment to cut off the road in the same area and entered and occupied Yanmen Pass. On October 21, the 716th Regiment ambushed a Japanese convoy of more than 100 vehicles. Because the Japanese army was prepared this time, the defense was tight, and 5 more aircraft supported the operation, the 716th Regiment could not be attacked for a long time, and the two sides fell into a tug-of-war. After killing and wounding one enemy, the 716th Regiment withdrew from the battle at the right time.
He Bingyan and Liao Hansheng commanded the 716th Regiment in two ambush battles south of Yanmen Pass, annihilating more than 500 Japanese troops and destroying more than 20 cars, and once cutting off the rear supply line of the Japanese army from Datong to Xinkou via Yanmen Pass. In the battle, He Bingyan went into battle with one arm, swung a knife to kill, and slashed a Japanese soldier in his hand, worthy of the style of a fierce general. The outstanding performance of the ministry was commended by the headquarters of the 120th Division and the Eighth Route Army, and the Military Commission of the National Government also issued a commendation order. In the 2005 movie "On the Taihang Mountain", Liang Jiahui played He Bingyan, wielding a skeleton knife in his hand and slashing left and right, and the Japanese army was dipped in death and died, which was called a mighty wind! Liang Jiahui was very proud of this and said to the reporter who came to interview: "I am the commander of the Eighth Route Army!" ”