At 4 o'clock on October 14, 1952, some of the cadres and soldiers of the Volunteer Army in the tunnel were still dreaming, and the roar of the large-caliber artillery of the US army broke the silence of the morning. The US military concentrated 300 large-caliber artillery pieces and carried out an unprecedented high-density artillery bombardment on the 597.9 heights of Shangganling and the Beishan of the 537.7 heights, with the density of fire reaching six shells per second....... The enemy's artillery shells fell on the position as densely as raindrops, and the huge sound of artillery and the impact of the shell explosion made the volunteer troops in the tunnel seem to be riding in small boats and tossing on the turbulent sea...... "Platoon commander, the enemy's artillery fire is much more fierce than in the past, and the enemy is really going to attack Shangganling on a large scale?" A sixteen-year-old little soldier asked the platoon commander of the Ninth Company with a painful expression. This time the enemy has made a lot of money, and the enemy ....." a platoon commander vomited a mouthful of blood (and two teeth) before he finished speaking..... "Platoon commander, what's wrong with you?" The platoon commander ...... "It's okay, cover your ears first if it's too loud; Hold on..... As soon as the cannon stopped, the enemy was about to attack......" The platoon leader said while wiping the blood from the corners of his mouth, and at the same time waved his hand to Zhang Lan, the military doctor who was about to come over: "I'm fine, take care of the wounded and soldiers; Especially the new fighters......"

The intensive and fierce artillery fire of the US army has lasted for half an hour, and Zhao Lianfa, the commander of the Ninth Company, and Li Wenwu, the instructor, have been trying to contact their superiors by telephone and walkie-talkie, but the phone has not been able to get through, and the walkie-talkie cannot be contacted (under such fierce and intensive artillery fire by the enemy, all the telephone lines have been blown up, and the walkie-talkie antenna has been blown up by the enemy's artillery as soon as it is erected; The walkie-talkie antenna in the tunnel has been used up and the starting phone antenna has not been set up); Zhao Lianfa is still trying to call ..... "Battalion headquarters, I'm Zhao Lianfa...... Battalion...... The battalion headquarters ......" Suddenly Zhao Lianfa heard the voice of the deputy commander of the 135th Regiment on the phone: "Zhao Lianfa?" What the hell is wrong with the smoke on your front? "The enemy is firing artillery on the 597.9 heights, and the intensity and intensity of the artillery fire is unprecedented; the enemy will soon attack in a big way......." Zhao Lianfa immediately made a very brief report; Please prepare to support weapons, ammunition, and food, and send troops to reinforce tomorrow night at the latest.....," Zhao Lianfa continued to report to Deputy Regiment Commander Wang. "Don't worry, we'll get ready right away; I'll report to the division commander right away! Zhao Lianfa, you must hold the position, the people are in the position! "Deputy Regiment Commander Wang agreed, and said that he would report to his superiors immediately, and at the same time gave Zhao Lianfa an order to hold his position." Feed..... Zhao Lianfa...... Zhao Lianfa ........: "Deputy Regiment Commander Wang had just given the order to hold his position, and the telephone contact was interrupted again (later people learned that it was an operator named Niu Baocai, who used his body as a wire to connect the telephone line for 3 minutes, and Niu Baocai won this precious 3 minutes of call time for the volunteers with his life......

The intensive and heavy artillery fire of the US troops lasted for more than 20 minutes, and many soldiers also cracked their lips and tongues, and all of them were holding on with firm will...... Suddenly, the seventeen-year-old soldier Xiao Shan, who was next to Zhang Dongfang, suddenly vomited blood and fell down...... "Xiao Shandong ......" Zhang Dongfang immediately picked up his comrades who were already lying on the ground (Xiao Shandong's mouth was still bleeding), and other soldiers rushed over one after another, and at the same time, Zhang Lan, Zhao Lianfa, and Li Wenwu also quickly came to Xiao Shandong's side; Zhang Lan shook her head with tears in her eyes after careful inspection...... "Xiao Shandong, Xiao Shandong......" The comrades-in-arms were shouting..... "I can't stand the .....", one of the soldiers picked up a weapon while shouting and was about to rush out of the tunnel; "A big river has wide waves, and the wind blows the fragrance of rice and flowers on both sides. My family lives on the shore, and I am accustomed to hearing the trumpet of the captain; I'm used to seeing the white sails on the ship. This is the beautiful motherland, where I grew up; In this vast land, there are bright scenery everywhere....." Before Zhao Lianfa and Li Wenwu could stop the soldier's beautiful and resolute singing in the tunnel, all the cadres and soldiers in the tunnel sat down to listen and looked in the direction of the song..... It turned out that Zhang Lan sang with tears in her eyes. When the first stanza had just been sung, the enemy's artillery fire stopped abruptly, "Comrades, the artillery on the position has stopped; The enemy's artillery fire began to extend, and the enemy's infantry was coming up; Get ready for battle!" Zhao Lianfa and Li Wenwu took up arms and issued combat orders to their comrades. "Comrade Zhang Lan, singing is amazing!" Zhao Lianfa turned back to Zhang Lan and said a word before walking out of the tunnel...... The battle is about to begin.....

Under the cover of 17 tanks, the U.S. Army launched a fierce attack on the 597.9 Heights Outpost (also known as Position 11) with the strength of two companies, and the soldiers of the 9th Company and 6th Squad used rifles, machine guns, and grenades to engage in fierce battles with the U.S. troops; As soon as the battle began, it became white-hot, and some of our grenades constantly hit enemy tanks and exploded, and some of them continued to explode among the American troops who fell behind the tanks...... The fighters of our troops guarding the positions soon suffered casualties..... When a U.S. tank had just rushed to the trench, two fighters of our army put blasters and bundled grenades on the tank's tracks from two directions, "Boom...... "Boom......" accompanied by two huge explosions, the enemy tank stopped; One of the fighters immediately rushed to the tank and opened one of the covers on the top of the tank, threw two grenades that were about to explode, and quickly left the tank to hide; After another explosion, the tank completely "rested", and ..... "da-da......." two fighters quickly arrived and fired back the US military machine guns that were about to rush into the position..... For the time being, other US tanks did not dare to directly rush into our positions, but stopped a few hundred meters away from our positions and fired at our positions......

The battle was still raging, and the fighters of the sixth squad repelled two enemy charges and destroyed one of the enemy's tanks in an hour and a half; The enemy left behind nothing but more than forty corpses and a scrapped tank (the sixth squad leader counted only 4 people who were able to fight). Zhao Lianfa was watching the situation of the enemy and us through the binoculars, "It's not good, notify everyone to enter the tunnel", Zhao Lianfa led the soldiers to urgently transfer to the tunnel...... At the same time, enemy shells rained down on the position, and explosions came and went; Three B-26 bombers had already flown over the position, and several heavy bombs were dropped on the palm-sized 597.9 height; after the bombs were dropped on the 597.9 height, the three B-26 bombers turned to the 537.7 high ground and dropped several special special bombs on the north mountain, and the 537.7 high ground was quickly engulfed in flames......

Another fierce artillery bombardment by the US forces began, and Zhao Lianfa, Li Wenwu, and Qin Zhonghua, deputy company commanders (the deputy company commanders who led the team with 45 soldiers who came to reinforce on October 13), party members, and backbone squad and platoon members held a temporary tactical summary meeting. "Three hours have passed, we have repelled nine enemy attacks, and more than a hundred of them have been killed. But our sacrifice was not small, and only one lightly wounded man in the first platoon and the sixth squad was safely evacuated to the tunnel; Positions No. 11 and No. 2 have already been occupied by the enemy. Zhao Lianfa spoke first. Judging from the enemy's firepower and charge, the enemy will not hesitate to occupy Shangganling this time, and we must first estimate the most difficult situation; Judging from the battle situation in front, it is necessary to invest fewer troops in the position, and not to launch a counterattack during the day. Li Wenwu added. I think it's enough to put in 3-5 people at a time, and then add them one by one according to the situation; You can't just go into battle all at once. Qin Zhonghua continued to add......

In the end, the meeting quickly reached a consensus: "In the upcoming defensive battle of position No. 9, no more than 5 troops can be invested at one time, and they will be replenished one by one according to the casualties; Do not fight back during the day. After personal efforts to win Zhang Dongfang and Zhao Lianfa's consent to be responsible for using anti-tank rocket launchers to fight enemy tanks (two other soldiers were sent to carry 5 special ammunition to act together), Zhang Lan won the right to go out of the tunnel to rescue the wounded if necessary......