The 1st Army was the first group of rotational warfare units in the Laoshan Battlefield, and on December 9, 1984, it replaced the combat tasks of the 11th Army and the 14th Army in the direction of Laoshan, Zheyin Mountain and Balihe Dongshan. At that time, the commander of the 1st Army was Fu Quanyou, who was later promoted to chief of the general staff, Shi Yuxiao, the political commissar, and the chief of staff was Wu Quanxu, the deputy chief of general staff who came up from behind. The 1st Division of the 1st Army strengthened the 36th Division of the 12th Army, the 3rd Artillery Division of the Fuzhou Military Region, the 3rd Regiment, the 14th Regiment and the 2nd Engineer Regiment of the 9th Artillery Division of the Nanjing Military Region, with a total of 26,624 officers and men.
During the Liberation War of the 1st Army, it was the 1st Column of the Northwest Field Army and fought some hard battles. Such as the Second Battle of Yulin, the Battle of Shajiadian, the Battle of Wazi Street in the Battle of Yichuan, the Battle of Kebaoji in Xifu, the Breakthrough Battle of Longdong, the Battle of Libei, etc. In December 1952, the 1st Army joined the Chinese Volunteer Army to fight in Korea. He successively undertook the task of holding positions on the front line of Maliang Mountain and Laoban Mountain on both sides of the Linjin River and participated in the counterattack operation in the summer of 1953. A total of 3 months and 22 days of combat, 103 large and small battles were fought, 12,069 enemy prisoners were killed and wounded, 29 enemy tanks were destroyed, and 13 artillery pieces of various kinds and 426 guns were captured.
The famous "Six Companies of Hard Bones" in the whole army is the 6th Company of the 1st Regiment of the 1st Division of the 1st Army. In the Battle of Yichuan, the 6th Company rushed up nanshan as a sharp knife unit and fought with the enemy several times, until only 13 people remained in the whole company and still held their positions. During the battle, Liu Sihu, the commander of the 2nd Squad, charged forward, and one person successively knocked down 7 enemy soldiers, becoming a combat hero who informed the whole army.
On the Laoshan battlefield, the 1st Army had to undertake a frontal combat area of 23 kilometers and a depth of 35 kilometers, with a total of more than 120 positions. It was an unprecedented scale of 7. After the 12th War, the Vietnamese army gathered heavily in the Lao Shan battlefield, maintaining 3 divisions of 10-13 regiments of infantry, as well as 1 special task force regiment, 1 artillery brigade and 2 artillery regiments to assist in the battle. The Vietnamese army adopted the tactic of "digging trenches and extending", digging 54 kilometers of traffic trenches, wedging deep into our army's defense zone, and dividing some positions of our army and isolating them.
On December 21, 1984, the Vietnamese army launched seven battalion and regimental attacks when the 1st Army's initial position was unstable. Relying on the strong positions built by the brother troops, the 1st Army, with the support of the strong artillery fire of the military subordinates, fought continuously for 31 hours, repelled the Vietnamese attack, and annihilated more than 700 enemy troops. In view of the bad defensive posture, the 1st Army confronted each other tit-for-tat, counter-suppression with powerful artillery fire, and the front-line troops dug trenches deep to consolidate the defensive positions, and then gathered troops to launch a sudden counterattack, uprooting the vietnamese forward strongholds, cutting off the enemy's communication trenches, and improving our army's defensive posture.
From January 15 to 18, 1885, the Vietnamese army successively dispatched 6 infantry battalions and 1 battalion of the 821st Special Agent Regiment under the 122nd Regiment, the 149th Regiment, the 153rd Regiment and the 876th Regiment, and the 142nd Heights and 662 of the 1st Regiment and the 3rd Regiment of the 1st Army. 6 Highlands launched an onslaught. On the 15th alone, the Vietnamese army fired more than 8,000 shells, cutting our high ground down several meters.
On 11 February, the 1st Division of the 1st Army attacked and attacked 18 strongholds of the Vietnamese 140 positions, 138 positions and the Xiaojianshan position with 6 reinforced companies, and after a day of fighting, they all conquered and held the captured positions. From March 8 to 11, after careful preparations, the 1st Army, with the 1st Division as the assault unit, launched an attack operation against the Vietnamese positions of 156, 166, 167, 168, 138, and Xiaojianshan. On the morning of the 8th, the battle began, and the various assault units made rapid progress. Among them, the commando team of 16 warriors of the 6th Company of the 1st Division and 1st Regiment captured the main peak position of Xiaojianshan in only 4 minutes, and 4 of the 16 warriors died in the battle.
From the beginning of December 1984 to the withdrawal of the position at Lao Shan in early June 1985, the 1st Army did not lose a single position in half a year's battle, no one was captured, no one violated military discipline, a total of 28 positions of the Vietnamese Army were removed, more than 100 counterattacks of the Vietnamese Army were repelled, 5,007 enemy casualties were killed, 128 enemy artillery pieces, 65 military vehicles were damaged, and 112 guns (guns) were captured. 404 people were killed.
The 6th Company of the 1st Regiment of the 1st Division participated in 9 battles, repelled 9 attacks of the Vietnamese platoon company size, and counterattacked to regain 2 high ground. The whole company annihilated 351 enemy soldiers, inflicted 57 casualties on its own (including 10 casualties and 47 wounded), and the ratio of casualties between the enemy and us was 6 to 1; it also captured 37 light and heavy machine guns, submachine guns, 14 60 guns, 14 individual rockets (doors), radios, guns and shells, and a number of military materials. Awarded the honorary title of "Heroic Hard Sixth Company" by the Central Military Commission, it became the only company to be awarded the honorary title by the Supreme Military Command twice.