1979 Counterattack Against Vietnam: The People's Liberation Army repelled more than 30 Vietnamese attacks

The Vietnamese command 79 was seriously underestimated by the Determination and Scale of the Chinese Army's counterattack before the War 79, and it was judged that the Chinese army, which had deployed only 1 division in the estuary area, might launch an attack before and after the Vietnamese army captured Phnom Penh. Therefore, after the counterattack operation against Vietnamese self-defense began, the Vietnamese army command mobilized the 316A Division to rush to the east to aid Lao Cai in accordance with the operational plan. What is more oolong is that the Vietnamese intelligence department still judged that the Chinese troops attacking on both sides of the Red River only had 1 regiment on each side of the Red River, despite the continuous artillery fire on both sides of the Red River on the tens of kilometers between the dam and Lao Cai, and it was safe to send reinforcements and counterattacks from the 316A Division. The 316A Division was not slow, and on the night of February 18, it set off from Shenyuan, about 130 kilometers away from Dai Nai, on a motorized march, with the 148th Regiment as the vanguard, followed by the 174th Regiment, the 7th Battalion of the 98th Regiment, and the 1st Battalion of the 187th Artillery Regiment, and entered the county seat of Sabah to open the division's forehand, and then continued along The 10th Highway to the east to aid Laojie. Because the 114th Regiment of the 38th Division of the 13th Army was blocked by the Area of Weilongsong and Ben Xi'ai, at 18:50 on the 21st, 2 infantry battalions of the 148th Regiment of the 316ATh Division rushed to the Dai Nai area, controlled the main points, and prepared to cover the main force of the division to wait for the opportunity to advance eastward, and attacked the Chinese army with the 345th Division in the Citrus Pond area to retake Laojie.

In this way, the 316A Division approached the 1 reinforced infantry force of the Chinese army step by step.

At 0:30 on the 22nd, according to the operational deployment of the 13th Army, the 39th Division was ordered to capture Dai Nai, control the main points, organize defenses, resolutely block the enemy's 316A Division's eastern reinforcements, and ensure the security of the flank of the main force of the army launching the Battle of Tangtang. On the morning of the same day, the division commander held a meeting at the 305th height to analyze the enemy situation, and decided to concentrate the main forces and weapons of the whole division in the Dai Nai and Gushan Xishan areas, form a deep echelon configuration, focus on defending the Dai Nai Nameless Heights, the key points of the Gushan West Mountain, and the 250, 271, 238, and 282 highlands, resolutely block the 316A Division's eastern reinforcements, and ensure that the main force of the army surrounded and annihilated the enemy in Citrus Pond.

Its defensive deployments are:

The 116th Regiment completed the task of annihilating the enemy of The 351st, 463rd Hill and Dai Nai Heights (including the Dai Nai Southwest Bridge) by the end of the day on the 22nd, and then the 117th Infantry Regiment took over its position and organized the defense. The 116th Regiment moved to the division's second-line position and deployed at the Gushan fork, the 250, 332, and 238 highland areas, focusing on the 271st, 250th, and Dengzhu highlands.

After the 117th Regiment took over from the 116th Regiment, it served as the defense of the division's first line position, and unfolded in the area of Dai Nai Southwest Bridge, GuShan Fork Road, and Dengshang Area, focusing on the key points of Dai Nai Nameless Heights and Gu Shan West Mountain, and blocking the 316A Division's eastern reinforcements.

The 115th Regiment (owing the 2nd Battalion) was the reserve of the division, deployed in the area of the 339th, 282nd, and 176th Highlands, ready to counterattack along the 215th and 402nd Heights towards Gushan and along the 266th, Dengzhu, and 271st Heights towards the road intersection to annihilate the enemy who had burst into the Gushan area; the 2nd Battalion occupied positions on both sides of the MengshanGou Mouth to ensure the security of the division's defensive positions.

The divisional artillery regiment (owed to the 85th Cannon Artillery Battalion) was organized into division artillery groups, occupying firing positions in the poguang and waicho river areas, and supporting the battle of Dainai Heights with main firepower; each infantry regiment's 100 mortars and 82 mortars were concentrated in the formation of regimental light firepower units to support infantry defensive battles in a timely manner.

All units completed all defensive deployments by 18:00 on February 21, and the division was opened at 11:00 on February 23 at Ascend Village.

Dai Nai is located in the southwest of GuShan, about 2 kilometers south of the 402 captured by the 115th Regiment, with a straight line distance of about 2 kilometers, bordering the Waiyom River to the south and the peaks of the Gushan West Mountains to the north. Dai Nai Nameless Highland belongs to the back end of a mountain that extends from the main peak of Yue Mountain from northwest to southeast, and is composed of 4 nameless highlands (arranged from east to west as Highlands 1, 2, 3 and 4), with high west and low east, with an altitude of 550-650 meters. The south side of the highland slope is about 50 degrees, the north side is about 40 degrees, and there are thatched, bamboo forests and shrubs on the mountain, which is difficult to observe and maneuver. There is a dense wood to the west of Highland 4. Dai Nai Nameless Highlands are separated from 351 Highlands and 402 Highlands to the north, and 463 Highlands to the east. Route 10 winds its way from the southeastern mountainside of the Dai Nai No Name Highlands to the northeast, and is the choke point leading east to Gu Liu and south to Sabah.

The 116th Regiment failed to complete the task in the previous stage of wearing Langam, and the whole regiment held its breath. This time, he inserted himself into Dai Nai to block the ace division of the Vietnamese army, which aroused the strong fighting spirit of the officers and men. According to the defensive deployment of the 39th Division, the regimental commander entrusted the task of attacking Dai Nai to the 2nd Battalion, which had been serving as a rear guard, strengthened the 100 mortar company and the 3rd Battalion Artillery Company of the Regiment, first captured the 351st and 463rd Highlands, and then developed an attack on the No. 1 and No. 2 highlands on the southeast side of the Dai Nai Nameless Heights with a force, and with another part of the troops along the 351 Heights, it was directly inserted into the No. 3 Heights on the south side, and after the victory, it organized a defense on the spot to block the enemy's 316A Division's eastern assistance.

At about 12 o'clock on the 22nd, the 2nd Battalion, with 4 companies as a sharp knife company, quickly advanced from the 402 heights to the 351 highlands on the south side. At 13:00, the artillery groups of the division and regiment carried out artillery preparations for the 351st and 463rd heights. At 13:15, 4 companies attacked the 351 heights, and the fight was crisp and clean, taking it in only 37 minutes. The original mission of the 4th Company was to continue to capture Hill 463 and then to advance to Hill 1. The 6th Company followed up with the 4th Company, and after the 4th Company captured the 351 Heights, it directly inserted into the No. 3 Heights. Considering that the 4th Company was developing smoothly and the casualties were relatively small, and the No. 3 Heights were higher in altitude, and belonged to the rightmost wing of the defensive position, the terrain was very important, and it was possible to take down here to control the southeast of Dai Nai from a commanding height, so it temporarily adjusted its deployment, and the 4 Companies strengthened the 6 Companies and 3 Platoons to continue to attack and advance in the direction of Dai Nai, and annihilated the enemy on the No. 3 Heights; the 6 Companies (owed 3 platoons) changed to attack and annihilate the enemies of the No. 463 and No. 1 and No. 2 Highlands.

The 4th Company continued south along Hill 351 and occupied Hill No. 3 at 16:30 without viet congregation. During the subsequent search, it was found that there were Vietnamese anti-aircraft machine guns, heavy machine guns, 82 recoil guns and 60 artillery fire points on the southwest side of Hill 3, and immediately called the division and regiment artillery to destroy it.

The 6th Company (owed 3 platoons) reinforced 3 heavy machine guns and 1 82 recoilless guns and attacked from the left flank towards The 463 Heights. Along the way, the terrain is constantly rising, the grass is deep and dense, the road is narrow and steep, and the 6 consecutive times lost their way, and the speed of progress is relatively slow. At 17:05, the 6th Company occupied 463 Heights without encountering Vietnamese resistance. Directly south of Highland 463 is Highland 1, which is tens of meters above Highland 463, blocking the view of Highway 10. The 6 companies and 1 platoons at the head quickly launched an attack on Hill 1. Suddenly, the Vietnamese troops on Hill 1 opened fire, and a fierce rain of bullets poured down on Platoon 1. Under the command of platoon leader Xie Zhixi, 3 squads of the 1st platoon rushed to the top of the heights in a battle formation. Company commander Yang Zhongjiu also quickly arrived at Height 463 and commanded the battle at a salient more than 120 meters from Height 1. Soon, a shell of the Vietnamese army hit the vicinity of the salient, and company commander Yang Zhongjiu and deputy company commander Gong Jinsheng were both injured. With the consent of The Battalion Commander Li Qingfu, Xie Zhixi, the 1st Platoon Commander, acted as the company commander and commanded the company to continue the attack together with instructor Zhu Shanrong. The 2nd platoon in the rear also rushed up, and Xie Zhixi ordered the 2nd platoon with 1 heavy machine gun to attack the No. 2 height on the right side to support the 1st platoon's battle. Because it was already dark, after reporting the battalion's command, the 1st platoon fired a signal bomb to indicate the target, and the battalion 82 mortars on the 402nd highland carried out artillery bombardment on the 1st height. Under the cover of fire, the 2nd Squad, led by squad leader Tang Jianlin, leapt forward from the west side of Highland No. 1, blew up 2 fire points of the Vietnamese army with grenades, and rushed to Highland No. 1 in one fell swoop under the cover of smoke. Tang Jianlin was shot and wounded during the charge, and Zhu Shanrong's instructor quickly followed up to the No. 1 high ground for command. The 2nd platoon on the right also rushed to The No. 2 Heights, encountered no Vietnamese resistance, and immediately occupied the position, while setting up a crane machine gun to shoot at the enemy on the No. 1 Heights, while dispatching 6 squads to detour behind the defending enemy flank. At the same time, 1 platoon and 3 shifts attacked the east side of Hill 1. After more than an hour of fierce fighting, the 6th Company finally captured The No. 1 Heights at 19:00. In the battle, a total of 14 enemy were killed, 1 enemy was captured, and 2 were wounded. 6 companies killed 1 and 9 wounded.

By this time, the 2nd Battalion of the 116th Regiment had stepped forward and occupied the Dai Nai Nameless Heights, controlling an important commanding height on the north side of Route 10. The 2nd Battalion immediately rushed to repair the fortifications and turned to the defense.

At about 19:30, the Vietnamese army launched a fierce artillery attack on The No. 1 Heights guarded by the 6th Company, and then took advantage of the night to send a small force to launch a counterattack. The 6th Company held firm and repelled all the Vietnamese troops. The Vietnamese retreated to a covert standoff on the south and southwest sides of the road, only about 200 meters from the nearest forward position of the 6 companies.

At midnight, the battalion commander informed the 6th Company that the Vietnamese captured by the 6th Company belonged to the 4th Battalion of the 148th Regiment of the 316A Division. Encountering the Vietnamese ace division, the 6th Company was nervous up and down. In the early morning of the 23rd, a long line of vehicles came from southwest to northeast on Highway 10, and from the indications, it was a large force of the Vietnamese army that had arrived.

A big war is coming.

At the critical moment, the vanguard of the 117th Regiment arrived at Dainai. After the start of the war, the 117th Regiment had been following up as a reserve of the 39th Division, and did not participate in the battle much, and the whole regiment was rubbing their fists. After receiving the operational orders of the division, the 117th Regiment mobilized and deployed on the afternoon of the 22nd, determined to take the 1st Battalion with 2 Battalions and 4 companies as the first echelon, led by the deputy battalion commander to Dai Nai, and followed up with the Regimental Commander, the 3rd Battalion, and the 2nd Battalion. At 17:00 on the same day, the 1st Battalion, with 2 companies as the vanguard company, set out from The 215th Heights and inserted into Dai Nai along the 116th Regiment's attack route. Although the straight-line distance from Highland 215 to Highland No. 1 southeast of Dai Nai is less than 5 kilometers, the grass is deep and densely forested along the way, the mountains are deep and deep, and it is a night march, and the troops are advancing while identifying the direction, stumbling all the way, and the action is very difficult. It was not until 4:30 a.m. on the 23rd that the first 2 companies of the 1st Battalion arrived at Hill 1.

Lin Xianmu, commander of the 2nd Company, and Qiu Hua, the instructor, went to the position where the 6th Company of the 116th Regiment was stationed and met with Acting Company Commander Xie Zhixi and instructor Zhu Shanrong. The 2nd Company of the 117th Regiment was ordered to take over the defensive tasks of the 6th Company of the 116th Regiment, but the 6th Company of the 116th Regiment did not receive orders from the regiment to withdraw from its position. After the coordination of cadres of both sides, it was determined that two companies would jointly carry out defensive tasks for the time being. The cadres of the 6th Company briefed the 2nd Company on the terrain and enemy situation in front of them, and then divided the defensive areas of the two sides: the 2nd Company of the 117th Regiment defended the ridge of the protrusion on the southeast side of the No. 1 Heights, the 6th Company of the 116th Regiment defended the west side of the No. 1 Heights and the No. 2 Highlands, and the 2 companies joined hands to block the No. 10 Highway.

Highland No. 1 is about 500 meters above sea level, south of the Waiyom River, and the mountain stretches from northwest to southeast, and is the southeastmost of several connected hills in the Dai Nai Nameless Highland. Highway 10 bypasses the abdomen of the mountain on its east and south sides, and the control of Highland No. 1 can cut off the highway, which can be described as a "throat point". Highland 1 is flat and bare at the top, covering an area of less than 600 square meters, surrounded by thatched and reedy, and on the southeast side is a dense bamboo forest. The slope of the protrusion on the southeast side of the highland is gentle and easy to climb, and there are steep walls of 4 or 5 meters high at the mountain side of the road on the southwest side, which is not easy to climb.

In the early stage, the 6th Company of the 116th Regiment had already repaired some trenches, shooting bunkers and anti-artillery holes on the high ground, but due to the narrow area at the top of the hill, the 2nd Company of the 117th Regiment had to go forward to the southeast side of the protrusion to dig another fortification. The 2nd Company first determined the defensive deployment according to the terrain: 1 platoon was deployed in the protrusion on the southeast side of the highland, facing the southwest; 2 platoons were deployed on the south side of the highland, facing the south to block the road; 3 platoons were equipped with 1 flamethrower as a reserve, which was deployed on the anti-slope on the northeast side of the highland; the heavy firearms were personally controlled by Lin Xianmu, of which 2 heavy machine guns were deployed behind the 1st and 3rd squads, and the other 1 was standby; 1 82 seatless guns were deployed after the 3nd squad side, and the other 2 were spare; and 2 60 guns occupied the firing position on the north side of the highland The engineering group planted mines on the road in front of the 2nd squad position to block the road; after the command post of the 60 artillery position, it was under the unified command of the deputy battalion commander. After the deployment was completed, the commanders and fighters of the whole company brandished shovels in the pre-dawn night, and struggled to build the fortifications in the order of kneeling first and then standing and then connecting the trenches and digging anti-artillery holes.

At 5:50 a.m., the sky was just a little white, and the fortifications of the 2nd Company were only half dug. Suddenly, three flares flew up on the side of the road, followed by a storm of shells, and the entire No. 1 height was immediately shrouded in smoke and fire and rubble. The Vietnamese offensive began.

The first wave of attacks involved about 2 platoons of the 4th Battalion of the 148th Regiment and attacked the positions of the 2nd Company under the cover of anti-aircraft machine gun and heavy machine gun fire. Because the fortifications were not yet perfect, 1 82 recoilless gun and 1 heavy machine gun of the 2 companies were destroyed by Vietnamese artillery fire, and casualties also occurred. Company Commander Lin Xianmu ordered the reserve firearms to be pulled up to occupy the position, and then, according to the division of labor with Qiu Hua's instructors, he and Qiu Hua commanded the soldiers to shoot fiercely with light and heavy machine guns, submachine guns and grenades. The 6 companies behind the flank organized the 1st and 2nd platoons of the front to block the Vietnamese army with fire, and called for the support of the battalion's 82 mortars. The 2nd and 6th companies joined hands to fight and repelled the Vietnamese attack with one blow. The division commander soon received a report on the situation of the battle on the nameless heights of Dai Nai, considering that the main force of the 117th Regiment had not yet reached the area where it was deployed, and that the Vietnamese offensive was relatively fierce and the fighting was fierce, so the 2nd Battalion of the 116th Regiment was ordered to continue to hold its position and not withdraw for the time being.

At 6:20 a.m., the Vietnamese launched another round of artillery barrage. After the artillery fire stopped, the Vietnamese army dispatched 2 platoons of troops from the southeast and due south towards Highland 1. Company Commander Lin Xianmu and Instructor Qiu Hua seized the gap where the Vietnamese shelling stopped and commanded the 2nd Company to quickly enter the position. The Vietnamese found a weakness that was too prominent in the 1st platoon position and rushed up the back of the hill from behind the southeast side. The second machine gunner Xu Zegui and the combat group leader Pham Thanh Minh first discovered the enemy situation and immediately opened fire, severely damaging the Vietnamese troops who were trying to sneak attack. The commander of Lin Xianmu's company urgently adjusted his firepower, commanding 1 platoon to block the enemy on both sides, and company heavy firearms focused on supporting the direction of 1 platoon. Company Commander Tse Chi Hee also commanded the 1st and 2nd platoons of the 6th Company to block the road with fire, and at the same time called on the Battalion 82 mortars to smash the Vietnamese offensive route and hit its follow-up troops. After 15 minutes of fierce fighting, the 2nd and 6th companies retreated from the second advance of the Vietnamese army.

After repelling the Vietnamese army twice in a row, Company Commander Lin Xianmu noticed that the 1st platoon position was too far ahead and the southeast side was vulnerable to attack, so he ordered the 1st platoon to withdraw to the second trench, form a circular defense with the 2nd platoon, and concentrate troops and weapons to hold the top of the highland. At that time, the 100 mortar company of the 117th Regiment was on its way to transfer, and the 82nd mortar of the 1st Battalion could not detect the target position for a long time, so it could not support the 2nd company in time. In order to reduce casualties, Lian Zhi asked the whole company not to be afraid of fatigue and seize the time to repair the fortifications. There was also a clear division of labor among the personnel on the positions: part of the fighting, part of the fortifications, and some of the forward transportation and transportation. During the battle, the 2 companies gradually built 3 waist-deep trenches of about 100 meters long, and basically everyone had anti-gun holes for individual soldiers, and the machine gun positions were also covered, thus forming a relatively strong defense system.

At 6:55 a.m., while the 2nd Company was adjusting its deployment, Vietnamese artillery preparations began again. This time, the Vietnamese artillery shelling continued continuously, and the narrow highlands were filled with smoke and dust, and it was impossible to distinguish the point of the explosion and the direction. Lin Xianmu, the commander of the company, worried about the safety of the soldiers, drilled out of the bunker to tell the soldiers to pay attention to the artillery defense and calm down, and before he could run out of a few steps, a shell exploded next to him, and the commander of Lin Company was unfortunately killed. The battalion commander quickly ordered deputy company commander Li Yuming to act as company commander and 1st platoon commander Wang Shunjiao to act as deputy company commander. Because Li Yuming was still in the rear guard of the 2nd Company at that time, he did not rush to the position, and Wang Shunjiao was temporarily in charge of command. After the artillery was ready to stop, the Vietnamese army launched a third attack on Hill 1 in multiple ways with 2 companies. Because the regiment and battalion were still unable to carry out artillery support, Instructor Qiu Hua issued a battle slogan of "avenge the company commander" and commanded the 2 companies to fight hard. When the Vietnamese army approached tens of meters in front of the position, the whole company suddenly launched with fierce melee fire, knocking the Vietnamese army down in pieces in front of the position. The 1st Platoon was still moving to the top of the highlands, and the 2nd machine gunner, Xu Zegui, took the initiative to take on the task of covering the shift of the whole class, suppressing the Vietnamese army with skillful company sweeping and point shooting. When the bullets ran out, the Vietnamese army rushed up again, Xu Zegui suddenly jumped out of the bunker and rushed into the enemy group, snatched a Type 56 class machine gun from the stunned Vietnamese army, retreated two steps and fired a rapid fire, immediately killing and wounding more than a dozen Vietnamese troops. The deputy squad leader of the 1st squad led the combat team to attack three times in front of the battle, and shot out 7 submachine gun cartridges in a row, the barrel was red, and then replaced with a light machine gun to continue shooting. The 2 companies annihilated the enemy in close combat with light and heavy machine guns, submachine guns and grenades, killing and wounding a large number of Vietnamese troops. On the side of the 6th Company, artillery support at the division and regimental levels had been called through the battalion command. Company Commander Xie Zhixi personally grasped the walking machine and continuously called for division and regimental artillery fire to suppress the Vietnamese offensive. The 122 howitzers of the division's artillery group rained down and slammed into the Vietnamese stormtrooper formation, forming a net of fire in front of the position, hitting the Vietnamese corpses everywhere. Xie Zhixi and Zhu Shanrong commanded the 6th Company in a bloody battle, and with the strong support of the division and regimental artillery, after more than 20 minutes of fighting, they finally crushed the third attack of the Vietnamese army.

Due to the large ammunition consumption and the temporary shortage of ammunition in the rear, the 1st Battalion of the 117th Regiment drew 1 platoon of ammunition from the 4 companies attached to it to supply 2 companies. In order to save ammunition, Qiu Hua's instructor issued an order in a timely manner: "The enemy will not fight within 30 meters, the enemy will not fight clearly, and the grenade will not be thrown." "The 6th Company of the 116th Regiment also concentrated the ammunition carried by the reserves and used them sparingly.

Before the battle began, Li Shuibo, the commander of the sapper squad, led three soldiers to the north side of the road in the dark to plant a directional mine. In order to kill and injure the enemy to the greatest extent, Li Shuibo and the warrior Liu Deqing approached and planted a mine under a cliff only a few tens of meters away from the Vietnamese army. While connecting the power supply, the Vietnamese attack on Hill 1 began, and the retreat route of Li Shuibo and others was cut off. Li Shuibo and Liu Deqing opened fire decisively, cooperating with 2 companies and 1 platoon to repel the Vietnamese attack. During the battle, the blasting device was destroyed by Vietnamese artillery fire and it was impossible to continue laying the mines. At this time, the Vietnamese army began a second offensive, and Li Shuibo decided to stay here to ensure the safety of the right wing of the 2 companies and 1 platoon, and to win time for his comrades to repair the fortifications. Li Shuibo commanded 3 fighters to open fire fiercely, attracting the fire of the Vietnamese army and effectively supporting the holding of the 2nd Company. After repelling the third Vietnamese attack, Li Shuibo was shot in the leg and wounded, and the soldier Liu Deqing was also killed. The Vietnamese pounced again, and Li Shuibo's bullets and grenades had been exhausted, and only a blaster was left. In order to cover the retreat of the 2 fighters on the mountainside in the rear, Li Shuibo struggled to meet the Rushing Vietnamese troops with the explosive canister. More than a dozen Vietnamese troops came up and surrounded Li Shuibo, trying to capture him alive. Suddenly, Li Shuibola burned the explosive canister pressed under him, and then struggled to stand up with the explosive canister, proudly looking at the Vietnamese troops surrounding him. After an earth-shaking noise, Li Shuibo and 6 Vietnamese troops perished. The 2 surviving fighters witnessed such a magnificent scene, retreated with tears, and returned to their positions that afternoon.

Without much intermission, at 7:25 a.m., the Vietnamese launched their fourth assault. This time, the Vietnamese army adopted the tactic of attacking the east with a sound west, first firing fiercely at the position of the 2nd Company, dispatching a part of its troops to launch a strong attack to attract the attention of the 2nd Company, and at the same time using about 1 company of troops to use the bamboo forest on the southeast side of the highland to covertly approach, in an attempt to carry out a surprise attack. Unfortunately, this operation by the Vietnamese army was quickly discovered by the observation post of the 2nd Company. The 2nd Company immediately concentrated various firearms to fire at the enemy, and at the same time threw out pieces of grenades, repelling the Vietnamese offensive in only 10 minutes. At that time, the deputy squad leader of the 2nd Platoon 5 found 1 Vietnamese truck on the road and destroyed it with continuous firing of submachine guns. Taking advantage of the gap between the Vietnamese army's retreat, Acting Deputy Company Commander Wang Shunjiao quickly organized the soldiers to repair the fortifications and adjust the firing positions of light and heavy machine guns and other firearms in time to prevent the Vietnamese artillery shelling.

Sure enough, ten minutes later, accompanied by a burst of artillery bombardment, the Vietnamese army launched a fifth attack with about 1 company of troops. At this time, the 82 mortars of the 1st Battalion finally calibrated the attack on Zhuyuan and began to support the 2nd Company with artillery fire. Although the Vietnamese army was fierce, it was cut off by the mortar fire of the Chinese army, and it was hit by various infantry firearms from the front, and the offensive soon fell apart. In addition to the dead and wounded in front of the position, a small number of Vietnamese scattered troops could not withdraw, so they hid in the dead corner of the slope and shot at the 2 companies to harass. In the fierce battle, the acting deputy company commander Wang Shunjiao was wounded and killed, and the command was replaced by Yang Jinhong, the commander of the 2nd Platoon. Yang Jinhong quickly organized the personnel on the position to divide the work, and in addition to the observation posts and the firearms on duty, he used some personnel to search and eliminate the small number of Vietnamese troops in front of the position, some personnel rushed to repair the fortifications, and some personnel carried out ammunition and casualties for the forward transportation and transportation of officers and men.

At 8:05, about 1 company of the Vietnamese army launched a sixth assault on Hill 1. The Viet Cong once again changed tactics, not only from multiple routes to the highland protrusion, but also with one force to carry out a surprise attack on the steep slopes southwest of the highlands. After Yang Jinhong discovered the Vietnamese attempt, he reported to the deputy battalion commander on the one hand, and on the other hand, he commanded the 3 platoons and 7 squads of the reserve to move to the west and block the Vietnamese army head-on. During the battle, 2 squads of machine gunner Xu Zegui continuously used machine guns, submachine guns, semi-automatic rifles and grenades to annihilate the enemy, and the corpses of the Vietnamese troops who rushed to the ground were scattered. When Xu Zegui was able to kill and was about to throw a grenade, he was unfortunately killed by a Vietnamese bullet in the head. Under the fire of the 6th Company of the 116th Regiment on the right flank, the 2nd Company repelled the sixth Vietnamese offensive. However, the Vietnamese army also had red eyes, and after a fierce shelling of The No. 1 Heights, about 2 companies of troops were deployed in a dense formation to pounce.

In the direction of the 6th Company, the Vietnamese troops in companies and rows on the road continued to rush to the southeast protrusion of Highland 1, and also attacked the commanding heights on the west and southwest sides. Faced with repeated attacks by the Vietnamese army, Xie Zhixi and Zhu Shanrong commanded 6 companies to intercept them with various light and heavy firearms. The battle was brutal and fierce, and under the bombardment of Vietnamese artillery, the casualties of the 6 companies were increasing. Xie Zhixi carried the radio on his back, commanded while fighting, and called for the support of the division and regiment artillery. Not to be outdone, the Vietnamese army, in addition to continuously bombarding Hill No. 1 with mortars, it also mounted 12.7 mm anti-aircraft machine guns on the top of Mount ZhuQuanhe, which was more than 1500 meters away from Height No. 1, and fired fiercely at the positions of 2nd and 6th Companies. Because the infantry firearms could not hit the head of zhu cylinder, Xie Zhixi once again called for division and regimental artillery support. Soon, the 130 rockets of the division's artillery group launched a salvo, which silenced the Vietnamese anti-aircraft machine guns on the top of The Chu Chu Ho Mountain. The 316A Division, worthy of being the "ace" unit of the Vietnamese Army, had a tenacious fighting spirit, disregarded casualties, and used the thatch and bushes and vines in front of the position as a cover to intermittently leap forward, continuously carrying out a crazy attack at the whole platoon and company level. With the strong support of the division and regimental artillery, the 6th Company and the 4th Company fought hard and repelled the fourth, fifth, sixth, and seventh attacks of the Vietnamese army. At 8:40, the Vietnamese army retreated again, but saw corpses lying on the ground in front of the position, and fragments of limbs and weapons were strewn all over the battlefield. The total casualties of the 6 companies also exceeded 50 people, and they had to pull up the reserve team.

After repelling the seventh Vietnamese onslaught, Li Yuming, the acting company commander of the 2nd Company, rushed to the position. He quickly surveyed the terrain, learned about the construction of fortifications, analyzed the enemy situation, organized light and heavy firearms, and formed the bombardiers into bomb throwing groups, dividing the bomb throwing area; and formed the special marksmen into a shooting group, responsible for eliminating the Vietnamese commander and the enemy who rushed in front of the formation. In view of the heavy casualties of the 2nd Company, the Battalion Commander ordered the 4th Company, the 2nd Platoon and the 1st Company 2nd Platoon to quickly advance, preparing to join the battle from the left and right flanks of the 2nd Company and strengthen the defense of The 1st Height.

Soon, under the cover of a burst of artillery bombardment, about 2 platoons of the Vietnamese army pounced again. Company Commander Li Yuming calmly gave command, put the Vietnamese troops within a distance of more than 20 meters, and suddenly ordered fire. 2 companies fired a salvo of light and heavy firearms, and rows of grenades flew into the enemy group, repelling the eighth Vietnamese attack in just a few minutes.

Seeing that the attack was not enough, the 148th Regiment of the Vietnamese Army threw 6 battalions into battle. At 09:42, the Vietnamese launched an even heavier artillery bombardment of Hill 1. On less than 600 square meters of high ground, 2,300 shells fell in a row. For a time, the high ground was filled with smoke, shrapnel was flying, the fortifications and bunkers were greatly damaged, and the defenders suffered casualties. Subsequently, under the cover of light and heavy machine guns and anti-aircraft machine guns, about 2 companies of Vietnamese troops launched a ninth attack. The Vietnamese army jumped intermittently from both wings under the cover of bushes and thatch, only to see a large grass green helmet looming towards Highland 1. Despite being suppressed by multiple rounds of artillery fire from the Chinese army, the Vietnamese 60 guns were still very active, posing a great threat to the Chinese army with flexible and accurate shooting. A Vietnamese force took the opportunity to approach covertly, using the cover of the bamboo forest to suddenly rush into the position of the 2nd Company from the east side. In the face of the unexpected situation, Li Yuming's company commander immediately made a decision and ordered Jiang Youyu, the acting 2nd platoon commander, to take people up to plug the gap and organize fire support at the same time. Jiang Youyu temporarily formed a commando team, first covered by flank fire, and then led the team to pounce on it with brave tactical movements, and after a fierce melee, annihilated the Vietnamese troops who broke into the position. The Vietnamese troops in the rear turned around and fled, and the 2nd Company organized a fire chase, killing and wounding a large number of fleeing enemies. At this time, the 2nd platoon of the 4th Company and the 2nd Platoon of the 1st Company who had come to reinforcement arrived and joined the battle from the left and right sides, and the position of the 2nd Company was more consolidated.

Another Vietnamese force stormed the positions of the 6th Company. In the face of the tide of the Vietnamese army, the commanders and fighters of the 6th Company fought tenaciously with the arrogance of the mighty mountains and rivers regardless of casualties. The platoon leader of the 2nd Battalion Machine Gun Company, Alziri, was in excellent physical fitness during his usual training and was good at dropping bombs. This time he went crazy, and in most of the half-day battle, Alzi traveled back and forth, alternating 5 submachine guns and 1 heavy machine gun to hit the enemy. In the face of the incoming Vietnamese troops, Al Zi Ri simply jumped into the trench and threw the grenade wildly. He calculated the distance, struggled to throw the grenade more than 60 meters, and before it landed, it exploded in the air, leaving the charging Vietnamese army with no dead end to hide, and was blown up with casualties. Several wounded officers and men who insisted on not being able to reach the line of fire specially pressed bullets and twisted the lid of the grenade for him, and Al Ziri was more fighting, dropping more than a hundred bombs and killing and wounding more than 50 Vietnamese troops, while he himself was unscathed. As always, the commander of Tse Chi Hee Company braved the yashi to call for the support of the division and regimental artillery, and the fierce artillery fire smashed on the Vietnamese offensive route, crushing the Vietnamese group again and again.

The ninth Vietnamese attack was repulsed, leaving patches of grass-green corpses on the beams and col.

At 10:04, the Vietnamese army organized nearly 2 reinforced companies to launch the tenth impact. The artillery bombardment of the Vietnamese army was even more intense, and Li Yuming, the commander of the 2nd Company, Yang Jinhong, the deputy company commander, and Xiong Wancai, the commander of the 4th Platoon, were wounded in the battle. Because the reserves had joined the battle, and the artillery fire at all levels from the division to the regiment and battalion was also supported in time, the Vietnamese army was blocked and intensively fired at layers, blocking the head, cutting off the tail, and hitting the middle, making it difficult for the Vietnamese army to rush to The No. 1 height, and the offensive was quickly crushed.

At 11:27 and 12:16, the Vietnamese army organized about 2 platoons to launch the eleventh and twelfth attacks. At this time, the Vietnamese offensive momentum was insufficient, and the artillery preparations were much sparser. After divisional and regimental artillery cut off the Vietnamese rear road, the 2nd and 6th companies fired a salvo of light and heavy firearms to cleanly retreat the Vietnamese army's two advances.

After repelling the twelfth attack of the Vietnamese army, the 117th Regiment pointed out that there were only 8 or 9 people left on the position of the 2nd Company (in fact, there were still 72 combatants) due to the misinformation of the forward senders, and the instructor of Qiu Hua was also seriously wounded (in fact, he was not wounded), so the regimental commander ordered the 2nd Company to withdraw from the position to rest, and the 4th connection took the defensive task of the 2nd Company. At 12:30, the 2nd Company handed over its position to the 4th Company to withdraw from the battle and assemble for recuperation.

With the cooperation of the brotherly companies, the 2nd Company held the Dai Nai No. 1 Heights, repelled twelve consecutive vietnamese attacks, killed more than 200 enemy troops, wounded more than 100 enemy troops, destroyed 3 enemy vehicles, captured 85 cannons, 82 recoilless guns, 60 guns, 13 light and heavy machine guns, 1 radio, 2 telephone sets, submachine guns, grenade launchers, and a large amount of ammunition. In the battle, 17 were killed in 2 companies and 31 were wounded. The cadres of the 2nd Company suffered serious casualties, the company commander changed three times, the deputy company commander changed four times, and many platoon commanders were killed or injured, but the former servants followed and the command was never interrupted. After the war, the 2nd Company was awarded the honorary title of "Heroic Company of Shouru Taishan" by the Central Military Commission, the martyr Li Shuibo, the leader of the engineer squad, was awarded the honorary title of "Yang Gensi-style Combat Hero" by the Central Military Commission, and the martyr Xu Zegui, the second machine gunner, was awarded the honorary title of "Combat Hero" by the Central Military Commission.

After receiving the regimental command order, the 4th Company of the 117th Regiment immediately adjusted its deployment, first advancing to the east side of the 2nd Company with 2 platoons to assist in defense, and then replacing the 2nd Company's forward position on Hill 1 with 1 platoon.

The 1st Platoon of the 4th Company, led by the deputy company commander, entered Highland No. 1 at 10:40 a.m., with the main defensive direction facing the protruding bamboo forest on the back of the hill on the southeastern side of the high. 1 squad occupied the front and right positions of the highlands; 3 squads occupied the left positions; heavy machine guns were deployed on the right side of the highlands, mainly blocking the southwest back of the front of the position; and 2 squads were platoon reserves, arranged on the anti-slope of the highlands. For more than an hour in the morning, 1 platoon coordinated with 2 companies repelled four successive Vietnamese onslaughts.

At 12:30, the 2 companies all withdrew from their positions, and the 4 companies quickly formed an auxiliary defense with the 6 companies. Before the troops could be adjusted, the Vietnamese offensive began again.

Fearing chinese artillery fire, the Vietnamese attack in the afternoon began to be dominated by sneak attacks. At about 12:17, the Vietnamese army did not shell, with about 2 squads of troops using thatch cover to approach, suddenly launched an attack on the junction of the 1st and 3rd squads. The deputy company commander was not in danger, and led the squad and platoon cadres to jump out of the trenches to strafe the enemy. The fighters also opened fire, and after a melee battle repelled the fifth vietnamese onslaught.

Due to the depth of the grass and bamboo forest in the defensive front, the Vietnamese army repeatedly used sneak attack methods, and 1 platoon took targeted measures: 3-4 observation posts were organized, the observation area was divided, closely monitored, and the Vietnamese army's offensive attempts were judged in a timely manner according to the grass movement and sound; 3 light machine guns were set up as duty firearms to provide combat support at any time; the rest of the personnel took advantage of the battle gap to repair fortifications, successively repaired more than 30 meters of chest-deep trenches, dug more than 20 anti-artillery holes, and improved the protection of the position.

At 12:40, the Vietnamese army once again concentrated its artillery fire on Hill 1. In addition to the observation post, all the officers and men of the 1st Platoon entered the fortifications and took cover. After the artillery fire extended, the Vietnamese army sent about 1 company of troops to the 1st platoon position. Due to the large number of Vietnamese troops, the deputy company commander called for regimental and battalion artillery support on the one hand, and ordered the entire platoon to prepare for battle and put the Vietnamese army closer and fight again. The Vietnamese army rushed through the artillery strike line of the Chinese army regardless of casualties, and when it was close to 30 meters of the 1st platoon position, it suddenly collided with a tight fire network composed of 1 platoon of light and heavy firearms, and soon suffered casualties everywhere. The 1st squad attacked in front of the line with the support of 3 lateral shots, killing more than 10 enemy and capturing 1 enemy, repelling the sixth attack of the Vietnamese army.

At 13:30, the Vietnamese army dispatched a reinforcement squad to the 1st squad position. Under the cover of heavy machine gun fire, the 1st Squad easily repelled the Vietnamese with crossfire.

At 13:55, a Vietnamese squad launched a sneak attack on the 1st squad position from the west side using thatch cover. The observation post found that the enemy situation was reported, and the deputy squad leader of the 1st squad led a group to quietly circle the flank of the Vietnamese army and suddenly opened fire. The Vietnamese army was caught off guard by this blow, and immediately suffered more than half of the casualties, so they had to turn around and retreat.

From 14:15 to 15:20, the Vietnamese army launched three more attacks on the 1st platoon position with the strength of 1 squad to 1 reinforced platoon. The 1st platoon calmly responded to the battle, brought the Vietnamese army closer, gave full play to the power of various light and heavy firearms, annihilated the enemy in close combat, and crushed the impact of the Vietnamese army.

After 15:00, the Vietnamese army shifted the focus of the offensive to the direction of the 6th Company. At this time, the 3 platoons with the 4th Company had been ordered to be rebuilt, and the defense of the 6th Company had been strengthened. With the support of the strong artillery fire of the division and regiment, the Vietnamese army's impact was often beaten down by the 6 companies in a few minutes, and the momentum became weaker and weaker. By 18:00, the 148th Regiment of the 316th A division was exhausted, and the gunfire that lasted for 12 hours finally gradually stopped, and the climax of the Dai Nai blockade battle passed.

In order to enhance the stability of the defense, at 18:00 on the 23rd, the 39th Division made further adjustments to the deployment and ordered the 117th Regiment to take over the defensive positions of the 116th Regiment as planned. The specific deployment was: the 1st Battalion of the 117th Regiment still served as the main defense, the 2nd Company withdrew from the position, after organizational adjustment, replenished with ammunition and dry food, and returned to the 1st Height at 18:30 to take over the defensive positions of the 4th Company and the 6th Company of the 116th Regiment; the 4th Company withdrew from the 1st Heights to take over the defensive positions of the 4th Company of the 116th Regiment on the 3rd Height; the 1st Company was the reserve of the battalion, which was deployed on the north side of the 1st Height, and the battalion was directed on the southwest side of the 463rd Height; the 3rd Battalion was deployed on the 155th, 402nd, and 349th Heights; and the 2nd Battalion was the reserve of the Regiment. The regimental fire brigade occupied the firing position on the north side of the 402nd highland and prepared to prepare for the infantry defense battle in the direction of Dai Nai; the regimental fire brigade was located on the west side of the 349th highland; the 116th regiment was still serving as the division's second-line position defense on the 271st highland, 332nd highland, and ascending; the 115th regiment was the reserve of the division, and was deployed in the area south of the 305th highland, ready to support the first-line battle.

When the 6th Link Order of the 116th Regiment withdrew from its position, there were still 88 combatants. Before the war, there were more than 130 people in the 6 companies, plus 1 platoon of heavy machine guns and 2 platoons of 5 companies and 7 squads of support, a total of more than 200 people, and more than half of them were lost in the first battle of the Dai Nai Blockade Battle. The 6th Company and its subordinate units attacked Dai Nai, held their positions, fought bloodily with the enemy together with the brother companies, fought for more than 20 hours continuously, and successively repelled 18 attacks of the 148th Regiment of the "Ace" 316A Division, killing 210 enemy companymen, wounding more than 200 enemy and capturing 1 enemy. After the war, the 6th Company was awarded the honorary title of "Heroic Company Capable of Attacking and Defending Well" by the Central Military Commission, The Platoon Commander of the 2nd Battalion Machine Gun Company, Aziri, was awarded the honorary title of "Combat Hero" by the Central Military Commission, and Zhu Shanrong, instructor of the 6th Company, was awarded the honorary title of "Combat Hero" by the Kunming Military Region.

The 1st Platoon of the 4th Company of the 117th Regiment took over the defense of the 2nd Company on the 1st Heights of Dai Nai, repelled eleven Vietnamese attacks successively, completed the task of blocking the attack, and killed 78 enemy, captured 1 enemy, and wounded only 1 person himself. After the war, 4 companies and 1 platoon were awarded the second class of collective merit.

Throughout the day on the 23rd, the main direction of the Vietnamese army was Hill 1, and only sporadic shelling was made on Hill 2 defended by 6 companies of the 116th Regiment and Hill 3 defended by 4 companies.

The 4th Company of the 117th Regiment took over the 4th Company of the 116th Regiment at The 3rd Hill Defensive Position that night. At about 20:20, the Vietnamese army launched an artillery attack on Highland 3, firing incendiary bombs that caused the 4th Company position to catch fire. The 4th Company called for regimental and battalion artillery support, but it was mistakenly reported that the 4th Company was surrounded by the enemy. Upon request, the regimental commander ordered the 4th Company to withdraw from its position.

Because of the important location of No. 3 Heights, according to the instructions of the army and divisions, in order to ensure the stability of the defense, the regimental commander decided to immediately restore the defensive positions of No. 3 Heights with the command of 9 companies and 1 Battalions. At 22:30, 9 connected the order from Highland 402 to Dai Nai Forward. At 00:10 on the 24th, the regimental artillery launched a 7-minute rapid fire attack on Hill 3, followed by an attack by the 9th Company. Due to the company commander's misjudgment of the position, the 9th Company captured The No. 4 Heights on the west side (mistakenly for No. 3 Heights) at 6:40 a.m., defeating 2 Vietnamese squads. At 7:30 a.m., the battalion commander found that the 9th Company had attacked the wrong position, and in view of the large gap between the defenses of Highland 4 and Highland 1, ordered the 9th Company to withdraw from Hill 4 and occupy Heights 3 and 2.

That night, the Vietnamese repeatedly shelled the dai nai front-line heights, firing a large number of incendiary bombs while dragging the bodies rearward with cars. Due to the poor night vision, the forward troops mistakenly reported that they had found a large number of armored vehicles and tanks of the Vietnamese army, and seemed to be preparing to launch a general attack on The No. 1 heights. The division and regiment quickly ordered the forward troops to prepare for the tanks, and at the same time sent anti-tank reserves to occupy the firing positions in the direction of Gu Shan.

At 8:30, after the regimental artillery was preparing for artillery fire, the 9th Company attacked again, and soon occupied Hill 3 and 2, without finding the Vietnamese. The company commander judged that Hill 3 might be the main direction of attack for the Vietnamese army, and decided to focus on Hill 3. In terms of defensive deployment, 1 platoon was assigned to 8 squads as frontal defenses to defend Highlands 2 and 3; 7 and 9 classes of 3 platoons were located on the north side of Hill 3; 2 platoons were in reserve and waited in the protrusion on the north side of Hill 2; 3 heavy machine guns occupied firing positions at the front of Height No. 3, the southeast side of Hill No. 2 and the north side of the protrusion, 2 60 guns were deployed on the north side of Hill 2, and 2 recoilless guns were deployed on the north side of Hill 2, responsible for destroying Vietnamese tanks circumventing along the road; and the company commander commanded on Hill 2. Each platoon immediately rushed to repair the fortifications, strengthened their vigilance, and formed a unified defense. At the same time, 1-2 lurking groups were sent to the front to prevent the Vietnamese army from sneaking in.

After a full day of fierce fighting on the 23rd, the 4th and 6th battalions of the 148th Regiment of the 316A Division suffered serious losses and their combat effectiveness was greatly reduced. Soon, the 148th Regiment pulled up the 5th Battalion. In view of the lesson that yesterday's large-scale infantry attack in World War I was seriously damaged by the artillery fire of the Chinese army, the Vietnamese army changed its tactics, mainly using artillery fire to covertly swim and intermittently bombard the Positions of the Chinese Army, and at the same time dispatched a small force of troops to use the terrain, grass, woods, and bamboo forests as a cover to conceal the approach to launch a sneak attack, and the main direction of attack was also changed to Highland No. 3, in an attempt to condescend to take The No. 2 and No. 1 highlands on the east side after winning the hand.

At 18:30 on the evening of the 24th, the Vietnamese army shelled The No. 3 Heights, followed by two squads of troops from the west flank. As the Vietnamese approached the front of the position 50 meters, the 3rd and 8th squads of the 9th Company suddenly opened fire, repelling the Vietnamese in one fell swoop. At 20:40, about 1 squad of Vietnamese troops once again advanced from the west side of Hill 3. When it was 30 meters to the front of the position, it was attacked by a burst of grenades from the 3rd squad, and the attack was immediately crushed. At about 23:00, about 2 squads of Viet Cong carried out a sneak attack from the south side of Hill 4 to Hill 3. The lurking group spotted the Vietnamese in advance, and when they advanced 20 meters in front of the position, the 3rd squad suddenly opened fire and threw out rows of grenades, which quickly repelled the Vietnamese.

At 5:00 a.m. on the 25th, the 3rd observation post found that about 1 platoon of Vietnamese troops was creeping forward and touching it. The company commander immediately ordered the 1st Platoon to enter the position and prepare for battle. When the Vietnamese army approached a distance of 30 meters, the 3 squads suddenly dropped bombs, and then the light and heavy firearms opened fire at the same time, killing 5 enemy people immediately, and the rest of the Vietnamese troops retreated.

After dawn, in order to improve the defensive posture, the company commander ordered the 3rd squad to push the defensive forward by 10 meters, and the 4th and 5th squads helped the 3rd squad to repair the fortifications. On the same day, the Vietnamese army shelled the positions of the 9 companies 27 times, destroying some of the fortifications and causing 3 casualties in the 9 companies. Because the 1st platoon had been defended all day and was quite tired, at 20:00 on the evening of the 25th, the company commander led the 2nd platoon to strengthen the 9th platoon to replace the 1st platoon defense.

At 20:30, after shelling, the Vietnamese army dispatched 1 squad of troops to move from the northwest side of Hill 3 to the 6 squad positions. As they approached the front of the position 50 meters, the 6th squad suddenly set fire to repel the Vietnamese troops. At about 22:00, the Vietnamese reinforcement squad carried out a sneak attack on the 6 squad positions along the bamboo forest north of the saddle of the No. 3 and No. 4 highlands. The lurking group gave early warning, and the platoon leader ordered 6 squads and 2 groups to come out 10 meters from both sides to form a rear triangular combat formation. When the Vietnamese approached a distance of 20 meters, 6 squads and 3 groups opened fire at the same time, crushing the Vietnamese sneak attack with fierce crossfire. At about 23:00, supported by artillery fire, about 1 platoon of Vietnamese troops attacked from the south side of Hill 4. The 6th squad put the Vietnamese army within a distance of 40 meters, and the light and heavy firearms suddenly opened fire, giving full play to the power of the grenades and quickly repelling the Vietnamese troops. Because the Vietnamese occupation of Hill 4 posed a greater defensive threat to Hill 3, the company commander immediately requested regimental and battalion artillery fire to suppress the enemy on Hill 4.

At 4:10 a.m. on the 26th, about 2 squads of Vietnamese troops once again touched the south side of Hill 4. About 10 meters from the lurking post, the 6th squad suddenly opened fire, killing 9 Vietnamese soldiers on the spot. When the rest of the Vietnamese army retreated, they were attacked by regimental and battalion artillery fire, and most of them were annihilated. At about 6 o'clock, under the cover of artillery fire, the Vietnamese army dispatched about 1 platoon of troops from The 4th Height to the 6th Squad position. The 6th squad was already very skilled, putting the enemy close to a distance of 30 meters, the light and heavy firearms suddenly opened fire, and then threw out rows of grenades, easily repelling the Vietnamese army.

In the two nights of offensive and defensive warfare, the 9 companies were well concealed, lurking and warning, and the blockade was effective, crushing the sneak attack and attack of the Vietnamese army. In contrast, the Vietnamese army's offensive spirit has been greatly weakened, and it has retreated when it encounters resistance, which is no longer the same as the crazy attack on the 23rd.

At 14:00 on the 26th, the company commander summoned the cadres of each platoon to understand the situation, sum up experience, and order each platoon to repair fortifications and adjust firepower. Soon, the company's logistics team sent dry food, drinking water and ammunition to the position, and the defense of the 9th company was further consolidated.

At 16:30, the Vietnamese army launched a fierce shelling of the position of the 9th Company, causing 8 casualties of the 9th Company. In order to strengthen the forward defense, the instructor took 3 shifts to replace the 6 squads that night, merged the 6 squads with the 5 squads, and readjusted the deployment.

At about 4:00 a.m. on the 27th, 1 group of the Vietnamese army sneaked from the bamboo forest on the northwest side to the 3rd squad position. It was found at a distance of about 70 meters from the lurking group. At that time, a lurker was not calm enough, and when he was far away, he drank passwords and exposed his position, so that he was shot and wounded by the Vietnamese army.

From the 26th to the 28th, the Vietnamese army shelled the positions of the 9th Company several times. Regimental and battalion artillery also suppressed Vietnamese artillery positions and attack detachments. Except for small-scale sneak attacks and counter-sneak attacks, there were no large-scale battles between the two sides.

While the 9th Company was holding on to The 3rd Height, the 37th and 38th Divisions of the 13th Army launched a fierce attack on the 345th Division of the Mandarin Yue Army in a rapid and rapid manner, and the eyes of the Kunming Military Region gradually locked on the 316A Division. In view of the fact that the 316A Division has been on the defensive in the Area of Route 10 since the defeat of dai nai on the 23rd and 24th. At 12 o'clock on the 24th, the Kunming Military Region and the 13th Army and the 39th Division issued instructions to organize small detachments to search and advance along the sides of the highway in the direction of Sabah to reconnoiter the movements of the 316A Division of the Vietnamese Army. At 21:46 on the 24th, the 117th Regiment sent 1 squad to reconnoiter and found no enemy situation. At 00:50 on the 25th, the 39th Division instructed the 117th Regiment to capture The 334th and 241st Heights south of the road southeast of Dai Nai to monitor the Vietnamese movements. At 11:00, the 7th Company of the 117th Regiment captured these two heights. At 9 o'clock on the 25th, the 117th Regiment organized a reconnaissance detachment to reconnoi in depth and reached Yue Mountain on the north side of Benxi'ai. In order to enhance the stability of the defense, the 39th Division ordered the 8th Company of the 117th Regiment to capture the 1662 heights south of Yueshan at 3 o'clock on the 26th, and the 5th Company also entered the highlands at 11:27 on the 26th, thus forming a solid defense on the north and south sides of Route 10 and creating favorable conditions for turning into the offensive.

After the 27th, the 316A Division did not launch another large-scale offensive operation except for sporadic shelling of Chinese army positions in the Dai Nai area. The Battle of Dai Nai was thus concluded.

At 18:00 on the 28th, the 9th Company of the 117th Regiment was ordered to move from defense to the enemy attack in the direction of Zhu Wanhe. In the five-day and night blockade battle, the 9 companies repelled 10 vietnamese attacks, killing a total of 69 enemy and capturing 1 enemy. 9 companies killed 7 and 19 wounded.

From the battle to capture the nameless heights of Dai Nai on February 22, until the 27th, the 6th Company of the 116th Regiment of the 39th Division and the 2nd, 4th and 9th Companies of the 117th Regiment fought for six consecutive days and nights, repelled more than 30 counterattacks of the Vietnamese "Ace" 316A Division, and annihilated more than 900 people in the 4th, 6th and 5th Battalions of the 148th Regiment of the 316A Division. Among them, 525 enemy were killed, 406 were wounded, 4 enemy were captured, 6 artillery pieces, 23 machine guns, 33 rifles and submachine guns, 4 grenade launchers, 40 rocket launchers, as well as a large number of ammunition and other military materials and equipment were captured, and 4 Vietnamese vehicles were destroyed.

The 39th Division firmly held Dai Nai, preventing the enemy from advancing a step forward, crushing the Vietnamese 316A Division's attempt to provide eastern assistance, dividing the connection between the 316A Division and the 345th Division, ensuring the flanking safety of the main army, and creating a favorable fighter for the main force to annihilate the enemy in Citrus Pond.

Since then, the Battle of Dai Nai has become a glorious page in the history of the 39th Division.