On January 25, 1951, the "United **" led by the US Army suddenly launched a counterattack on the whole front when the veterans of the volunteer division were tired, the battle line was lengthened, and the logistics supply was difficult after three battles. The volunteers were forced to end their rest and recuperate early and rush to the battle. On the Western Front, the 38th Army and the 50th Army were deployed side by side on the south bank of the Han River, blocking the crazy offensive of the "United **" step by step, creating conditions for the counterattack of Hengcheng on the Eastern Front. The days and nights of hard work on the south bank of the Han River can be called the most difficult time in the history of the 38th Army and the 50th Army. However, these two armies gritted their teeth and used their flesh and blood to delay the rolling torrent of steel, and successfully completed the task assigned by Shiji. In particular, as a whole formed rebel force, the 50th Army, whose performance in the first three battles was unbelievable, shined in this blocking battle, which really exceeded the imagination of most people. ** It was said that priority should be given to the 50th Army to be reequipped with Soviet weapons and replenish soldiers. This greatly moved Commander Zeng Zesheng and his commanders and fighters, who had suffered greatly from being disregarded, bullied, and betrayed in the Kuomintang army. 
During the War to Resist US Aggression and Aid Korea, which lasted two years and nine months, 25 infantry corps, 79 infantry divisions, 16 artillery divisions, 10 tank regiments, 10 railway divisions, and 12 air force divisions of the Chinese Volunteers entered the DPRK to participate in the war. However, the troops awarded honorary titles by the Volunteer Army Headquarters are only up to the regimental level, and there is only one "Baiyun Mountain Regiment". The number of the regiment is the 447th Regiment of the 149th Division of the 50th Army, and its predecessor was the 63rd Regiment of the 21st Division of the 60th Army of the Kuomintang Army that rebelled in Changchun during the Liaoshen War. This regimental honorary title of the All-China Volunteer Army was won in the blocking battle on the south bank of the Han River. When it first entered the DPRK, the 447th Regiment had 3 infantry battalions, artillery companies, communication companies, and police engineering companies, with a total of 2,275 people, 69 mules and horses, and 18 60 mortars and 4 82 mortars. In the first three battles, the regiment did not fight hard and vicious battles, and only lost 7% of its strength. At the beginning of the 4th campaign, the regiment numbered 2,118 men. When entering the Baiyun Mountain area to carry out defense, the regiment was reinforced by the 149th mountain artillery of the 75th Mountain Artillery Battalion of the 3rd Division and 2 mountain guns. Compared with other units of the Volunteer Army, the 447th Regiment seems to be "strong and strong", but if you count the amount of ammunition, I am afraid that no one will be optimistic. 
Before the start of the blockade battle, the regiment actually had the following amount of ammunition: the regiment had a total of 119 submachine guns and 15,708 rounds of ammunition, with an average of 132 rounds per shot. The regiment had 476 rifles of various types and 19,040 rounds of ammunition, with an average of 40 rounds per shot. The regiment had a total of 60 light machine guns with 30,000 rounds of ammunition, an average of 500 rounds per shot. The regiment had 17 heavy machine guns with 18,700 rounds of ammunition, an average of 1,100 rounds per shot. The regiment had 18 60 mortars with 681 shells, an average of less than 38 shells per gun. The regiment had 4 82 mortars with 208 shells, an average of 52 shells per gun. The 2 reinforced 75 mountain guns had only 80 shells, an average of 40 shells per gun. The regiment had a total of 1,756 grenades, less than one per capita. In addition, the regiment had 66 blasting canisters and 104 kilograms of explosives. Not all of the ammunition was given to the fighters. In order to cope with the unexpected, the regiment's logistics department kept 1,428 submachine gun rounds, 1,904 rifle light machine gun rounds, 1,700 heavy machine gun rounds, 59 60 mortar shells, 200 hand grenades, and 16 blasting canisters in its hands, ready to support the most dangerous areas at any time. The defensive area of the 447th Regiment was 15 kilometers wide on the front and 10 kilometers deep. The defensive front was simultaneously deployed with the strength of two battalions, with an average distance of 1,500 meters between platoons and 100 meters between people. Spread two-thirds of the above-mentioned ** ammunition on such a wide frontage, the density of fire on the frontal of the unit is rather thin. On January 25, the 447th Regiment began to engage fire with the US 25th Division that was attacking from the north. From 25 to 31 January, the fighting was fought mainly in the Brothers' Peak area. During this period, the regiment was not replenished with ammunition from its superiors, and could only rely on the ** ammunition collected from the enemy's corpses to persist in the battle. Because of the scarcity of ammunition, the 447 regiment also stipulated: to fire 1 82 mortar shells, it must be approved by the regiment. The firing of 1 75 mountain shell is subject to the approval of the division. In order to ensure the ammunition in the key directions, the regiment urgently transferred one-half of the ammunition from the direct subordinate team and the 1st battalion of the reserve team, and the regimental combat command post uniformly deployed it. 
On the evening of January 27, the regimental combat command post took advantage of the darkness to send 500 rounds of infantry and 320 grenades to the front of the 2nd Battalion, which had the largest consumption. On the night of January 29, the 447th Regiment replenished the 2nd Battalion, which was going to carry out a tactical counterattack against the enemy at night, with 4,000 rifle grenades and 20 60 mortar shells. The 2nd Battalion, which had little ammunition left, relied on these replenishments and successfully counterattacked in one fell swoop and recovered. 0 Highlands. On the evening of January 31, the 447th Regiment was ordered to adjust its deployment, and the focus of the battle was shifted to the line of Baiyun Mountain, Guangjiao Mountain, and Shangsun Valley. The regimental logistics replenished the stockpile of 3,300 rifle machine gun shells, 100 grenades, and 39 rounds of 60 mortar shells to the 2nd and 3rd battalions, which were the most consumed in the regiment, and requested the division headquarters to urgently replenish ammunition. The 149th Division searched for the family and sent 447 rounds of foot machines and 109 grenades to the 457th Regiment that night. By the time of the battle on February 2, the troops holding the Baiyun Mountain area had not eaten or replenished ammunition for two days. The 447th Regiment sent a combat detachment to brave the rain of bullets to replenish 1,500 rounds of rifle machine gun shells and 400 grenades from the 1st Battalion to the 2nd Battalion, which was under the greatest pressure of the American Army, and to cover the front of the cooks to deliver cooked food and water. At 18 o'clock that night, the ammunition for the 149th Divisional Station to replenish the 447th Regiment finally arrived. The total ammunition included 12,300 submachine gun rounds, 18,800 rifle rounds, 21,200 light machine gun rounds, 26,000 heavy machine gun rounds, 1,242 60 mortar rounds, 2,300 grenades, 362 anti-tank grenades, 274 mines, 37 blasting canisters and 1,500 kilograms of explosives. The commander of the regiment decided to keep one-tenth of each of the rifle machine gun shells, submachine gun shells, 60 mortar shells, and hand grenades as a mobile unit, and the base was mainly replenished to the 2nd and 3rd battalions, which were inextricably separated from the US troops. After receiving reinforcements from the 1st battalion and 1 platoon of the reserve, the regimental combat command post organized more than 150 people, 34 pack horses, borrowed 12 ox carts and 10 oxen from the local people, and carried out emergency replenishment of the 2nd and 3rd battalions from 22 o'clock. Other ammunition was sent to the battalion headquarters and company headquarters, and 60 mortar shells, anti-tank grenades and mines, which were urgently needed for the battle, were sent directly to the forward positions. Before departure, the 447th Regiment Combat Logistics Command Post briefly mobilized all the transport personnel, and organized the transport capacity into several groups according to the different materials transported and the forward delivery distance, and assigned cadres to lead the team. In the process of sending forward, the method of dispersing small groups and advancing in multiple ways was adopted, and the US military firepower was used to block the gap and pass through the blockade line. Inspired by the slogan of "running fast on their backs, and not empty," all the transport personnel made two round-trips between the regiment's logistics warehouse and the forward positions in one night. Some of the shoes ran away and continued to deliver supplies barefoot. Before dawn on February 3, the total weight was about 13All 9 tons of ammunition of various types were delivered to the battalion and company positions, and 21 wounded were brought back. 
During the 12-day blockade battle, not only ammunition, but also other food, non-staple food, medical consumables and various geotechnical tools, etc., were all lacking in the 447th Regiment. From the beginning of the third campaign, the transportation line greatly extended by the Volunteer Army was repeatedly bombed by US planes, and the transportation efficiency was sharply reduced. Even the ** of fried noodles is seriously insufficient. Not to mention the nutritional ingredient list of fried noodles.
First, it is okay to use field food with a very bad taste for emergencies, but long-term consumption will lead to malnutrition and serious decline in the physical fitness of the commanders and fighters. Fortunately, before the start of the 4th battle, the 447th Regiment did not wait or rely on it, and took advantage of the relatively developed economy in the surrounding area of Seoul to raise 8,800 catties of grain, 50,000 catties of rice, 450 catties of cooking oil, 15 packs of dried fish, 70 boxes of tobacco, 2,000 candles and some sauerkraut. The 149th Division also allocated 200,000 catties of rice to the 447th Regiment from several enemy grain depots captured in Puerli and Mijuli. Relying on the local people, the regiment reinstalled a rice mill that Li puppet army had dismantled and buried, used gasoline abandoned by the US army as fuel, and started the rice mill to thresh a large amount of rice raised day and night. By January 24, a total of 910,000 catties. In view of the fact that the US military's air-ground firepower is really strong, the rear materials have to be sent to the front, and the loss rate is quite large. Before the start of the blockade battle, the 447th Regiment distributed a lot of grain and Liao Liao's scarce non-staple food to the cooking squads of each company on the front. Most of the cooking classes choose bomb shelters or private houses as their workplaces. After the battle began, most of the workplaces of the forward cooking squad were destroyed by enemy fire. The cooking squads of each company summed up their lessons, and at the foot of the hill on the anticline of the position, they used the valley to build a concealed department, and continued to carry out their work in strict camouflage. However, in this way, the distance before the prepared meal is greatly extended. During the battle, due to the deep snow and slippery roads, a cook rolled down the hill three times in succession while delivering food. Although some of them delivered their meals to the front line, they had frozen into ice cubes due to the cold weather. In the face of daunting difficulties, the cooks used their brains to figure out a way. In order to escape from enemy planes and artillery attacks, they took advantage of the dark hours before dawn and after dusk. In order to keep the food warm for a longer time, they wrapped a quilt around the iron bucket where the food was served and then wrapped it in a raincoat. In order to prevent slipping and falling while climbing the mountain, they tied straw ropes to their shoes, tied the straps from the food bucket to their bodies, and dragged them from the bottom of the mountain to the top of the mountain. After a lot of hard work, we finally brought hot meals, hot dishes, and hot water to the forefront. What made the commanders and fighters even happier was that after the blocking battle began, the 447th Regiment managed to raise 6 big fat pigs, and each battalion was divided into 2 pigs. In the fierce battle, the commanders and fighters, who had not seen meat for more than a month, finally ate meat. In addition to food and non-staple food, the regiment also sent a material collection team to Seoul before the war to collect materials abandoned by the US puppet army, and collected a total of 750 shovels, 425 pickaxes, more than 80 saws, and some medicines. Among them, medicines are the most precious. When the 447th Regiment entered the DPRK, it only carried medicine and equipment for 2 horses, each battalion carried 2 small medicine boxes, and each soldier carried 2 first-aid kits. These small medical supplies were partially consumed in the first three campaigns and were never replenished. Now the big problem is finally solved. After transporting back this batch of materials, the 447th Regiment also mobilized the commanders and fighters to make some stretchers and splints with their own equipment. The regimental ambulance station also found braziers, charcoal, and prepared heating equipment. When the 447th Regiment went abroad, the regimental health team had 16 medical personnel, 1 stretcher platoon, 12 stretchers, and more than 20 stretchers. At the beginning of the fourth campaign, the superiors assigned the regiment a stretcher team of migrant workers with 36 stretchers and more than 70 people. Together with the cadres and miscellaneous personnel of the organs, a stretcher transport team of 131 people was formed. In order to reduce the number of wounded and shorten the operation time, the front-line positions of the 447th Regiment have built hidden points for the wounded, and each company has specified the concentration points and evacuation roads for the wounded in the positions. Road signs were set up along the way from the forward positions to the rear. The battalion bandaging station and the regimental ambulance station have built air-raid shelters for the wounded, which can accommodate 8 to 12 people. The stretcher transport team organized on-site terrain surveys many times to familiarize the team members with the position of the position. 
After the start of the blockade battle, the stretcher transport team took advantage of the darkness of the night and the gap between enemy fire to rescue the wounded with tactfulness and courage under the condition that the US air-ground fire was tightly blocked. Due to the deep snow and steep slopes, one casualty person needed to be carried by four people. In order to rush for speed, the stretcher team members used tree branches and door panels to make climbing plows to pull the wounded. Sometimes a stretcher is placed directly on the snow and slid down the slope. After the battle began, more and more wounded were sent down from the position, and medical equipment was insufficient. In desperation, the medical staff had to use salt water instead of iodine and a small first-aid kit instead of a large gauze dressing. Replace splints with straw rods and branches. According to later statistics, the regiment's guards transported and disposed of a total of 198 wounded during the battle. The bodies of the 146 martyrs who died were also buried on the spot. The only regret is that when he was ordered to withdraw from the Baiyun Mountain area and move to the north bank of the Han River, 120,000 catties of rice, more than 500 pairs of cloth socks and more than 200 pairs of velvet pants could not be rescued because the enemy's blocking fire was too fierce.