The Volunteer Army suddenly divided its troops on both sides of Shangganling, which greatly surprised Van Vliet's expectations. First of all, he didn't expect that the volunteer army would put so many troops on the left and right sides, he originally thought that he would concentrate on attacking the main peak, and the volunteers would also concentrate their forces in the direction of the main peak to confront him, but he didn't expect the volunteers to attack the left and right sides, forcing him to draw troops to resist, so that his own troops were insufficient!

"Tell the troops on both sides to strengthen the defense, transfer all the artillery on both sides to the direction of the main peak, and transfer the 6th Division of the South Korean Army to the north to participate in the attack!" Van Vliet said. "Commander, the Sixth Division is our last division-level unit in the direction of Shangganling, and if the Sixth Division also suffers losses, I am afraid that the Chinese will be unable to stop us!" Van Vliet's chief of staff reminded. "Don't worry about this, they are also running out of strength now, I don't believe they still have the strength to launch a large-scale attack, not to mention that we still have the air force!" Van Vliet said. "One more thing, even if the Sixth Division is transferred, we only have one South Korean Division and one American Legion, and I don't think such troops are enough to capture the two heights on the main peak!" Van Vliet's chief of staff said with some concern. "He'll take it!" Van Vliet said.

The South Korean Sixth Division, which had planned to withdraw because of Liu Xiaoshan's withdrawal, received an order to attack Sangganling. "Division commander, didn't we cooperate in the elimination of small groups of Chinese interspersed troops? How did you get to Shangganling? The chief of staff of the commander of the 6th Division of the South Korean Army asked. I just received the order, and I can't help it! The commander of the 6th Division of the South Korean Army said. Division commander, there is a meat mill there, so far there have been several troops fighting and there is not even a slag left, we are already dissatisfied, if we go to Shangganling now, it will be gone! The chief of staff said. This is an order from the Americans, and I have no way! The commander of the 6th Division of the South Korean Army said helplessly: "Execute it!" ”

The 6th Division was ordered to rush to Shangganling and join up with the American corps there. "You're too slow!" The American Legion Commander said arrogantly. "We're not slow, fifty kilometers and two and a half hours... This was stated by the commander of the 6th Division of the South Korean Army. "Don't talk nonsense, immediately reorganize the troops, and when the supporting artillery arrives, launch an attack!" The American Legion Commander said impatiently. "Do we have a plan of attack?" The commander of the 6th Division of the South Korean Army asked. "The plan is really there, but you need to show some military courage, don't let the Chinese shoot you like a wild donkey that loosens the reins!" The commander of the American Army said. "Your Excellency, Commander, we South Korean soldiers are..." The commander of the 6th Division of the South Korean Army said with a sigh of rage. "Don't talk nonsense, get ready to fight, you South Korean pigs!"

Why did the U.S. Legion Commander say it takes a little courage? Because a staff officer of the US army discovered the weakness of the defense of the volunteers, that is, the area on the two heights is limited, and the strength of the troops is also limited, and each attack of the United Nations army is maintained for half an hour or 40 minutes, so that the volunteers have time to breathe and rectify, as long as the offensive posture is maintained, the limited strength of the volunteers must not last. At the same time, the artillery of the US army must strictly block Gaudí's support route, and also use the air force to suppress the artillery of the volunteers; as long as the fire strikes are in place and the attack is continuous, no matter how tough the Chinese are, they will not be able to resist the slightest strength on the high ground! This staff opinion was taken seriously by Van Vliet!

This time, Van Vliet personally organized the largest multi-arms coordinated attack of the US army since the battle, and the artillery on both sides had all rushed to the front of Shangganling, and it was the US artillery on the front of Shangganling that reached a very large scale, with a total of six artillery regiments. Van Vliet arranged for the fire of three artillery regiments to block the support path of Shangganling, and the three artillery regiments carried out coverage and concentrated fire strikes on the high ground, and also dispatched more than 30 planes to suppress the artillery of the support army behind Shangganling. Concentrate all the strength of the 6th Division of the South Korean Army and a battalion of the US Army to launch a continuous attack on the 537.9 heights, as long as one high ground can be broken, then the other high ground cannot be defended!

After some preparations, the well-organized American troops, starting with artillery fire, launched a new offensive. The concentrated artillery fire of the American troops almost covered the entire main peak position. Dense shells enveloped the 537.9 heights. The unexpected ferocious shelling of the American army attracted the attention of Liu Hai. "Something seems wrong with the shelling this time!" Bangs said as he looked at the explosion on the high ground with a telescope. "Nothing, the shelling of the Americans has always been so desperate!" The staff officer next to him said. "That's not right!" Bangs said: "This time the density of units is unprecedentedly high, and the artillery of the Americans has been strengthened!" "What do you mean?" The staff officer asked. "The Americans want to concentrate on attacking five-three-seven-nine!" Bangs said. After finishing speaking, Liu Hai measured the map with a ruler and said: "Tell the rocket artillery that after twenty-five minutes, it will densely cover the area of 0 to 300 meters in front of the 537.9 position!" Camouflage troops are going to light all the anti-aircraft smoke! "Yes!" The staff officer said.

Liu Hai knew that in such a dense artillery attack, it would be difficult to get in touch with the position, so he could only rely on his own experience and distance to accurately judge the enemy's marching time and speed, and then cover it with rocket artillery. The reason why high-density suppressive firearms such as rocket artillery are used as soon as they come up is because no matter which country attacks with a bang, but the saying is different, so the first batch of attacks is the most violent, and the use of rocket artillery, which can be used to destroy firearms in unit time and region, can not only destroy a large number of enemies, but also deal a heavy blow to the opponent's offensive spirit, as long as the offensive spirit is lost, then no matter how large the number of people attack, it is also weak!

US planes flew everywhere in the sky, rushing down and strafing and dropping bombs whenever they found the slightest fireworks, with the obvious aim of suppressing the artillery of the volunteers. Liu Hai sensed the unusualness of this attack, so he ordered the rocket artillery to carry out the first round of strikes, and in order to be able to cover the safe fire of the rocket artillery, Liu Hai ordered to light all the anti-aircraft smoke. The so-called anti-aircraft smoke is to use tires, gasoline and wooden planks to ignite together to form an open flame and a large amount of burning smoke, which is used to hinder the observation and attack of US planes in the sky, so as to play the role of covering the rocket artillery, because when the rocket artillery is launched, there will be a shining tail flame and huge launch smoke, as long as the air defense smoke is ignited, the fire and smoke can be used to obstruct or reduce the exposed position of the rocket artillery when it is launched. In order to be able to ensure a successful fight against the first round of the offensive of the UN troops, Liu Hai ordered to light all the anti-aircraft smoke.

Based on his own experience and methods, Liu Hai made a relatively accurate prediction of the offensive speed and area of the United Nations forces, and under the cover of air defense smoke, the rocket artillery was successfully launched. The rocket artillery fired extremely fast, and in a short period of time more than 2,000 rounds* were fired on the offensive line of the South Korean Army, which was the first to attack. As one of the first South Korean battalions to attack, it was instantly drowned in rocket artillery attacks. The astonishing coverage capability of rocket artillery has beaten a battalion of South Korean troops to the ground, and the rest of the people are all lost in their souls and have completely lost the courage to fight! Seeing that a battalion of the South Korean Army was gone, as the second batch of the South Korean Army to attack a battalion, the battalion was terrified and completely lost the spirit of attack.

"Attack!" The battalion commander of the South Korean Army shouted at his soldiers, and the soldiers of the South Korean Army slowly rushed forward. "Rush, we must speed up the attack, we must be fast, we must not let the Chinese judge the speed of our attack, as long as we are fast enough, we can evade the Chinese's blocking and shooting!" The battalion commander of the South Korean Army was a veteran soldier who was still very experienced in artillery bombardment. After hearing his words, the South Korean troops all quickened their speed and rushed towards the 537.9 heights. This battalion commander of the South Korean Army is indeed experienced, and under normal circumstances, the faster you rush on the battlefield, the less likely it is to die, especially in the case of dealing with such artillery fire against the enemy, the more you retreat, the easier it is to die! But this is the general situation. Bang Hai obviously did not belong to the ordinary situation, so in the second round of strikes of the volunteers, the shells still hit the South Korean troops on the march.

"Rush! Don't stop, the easier it is to die when you stop! "The battalion commander of the South Korean Army is only a battalion commander, and he does not know that Liu Hai has a set of advanced prediction methods based on the terrain and battle situation in the tactics of blocking and shooting, but he knows that there is no choice in the current situation, and he may still be able to survive if he rushes forward, and if he retreats or stays in place, he will definitely die, so the battalion commander of the South Korean Army desperately urges his soldiers to rush forward. But can you survive if you rush to it? When the volunteers on the high ground saw that the other side was attacking, they immediately fought and blocked the attack of the South Korean army!

The battalion commander of the South Korean Army, relying on his superiority in strength, rushed to a distance of 20 meters from the high ground, and saw a group of people in tattered clothes and bayonets rushing out of the trenches towards him.

"Retreat!" The battalion commander of the South Korean Army, as an officer of the South Korean Army who had fought with the Volunteers several times, knew that his soldiers were no match for the Volunteers at all, and now that he had attacked 20 meters, he could be regarded as giving an explanation to the Americans, so he ordered a retreat! However, at this time, the commander of the South Korean Army found that another South Korean Army battalion was rushing in his direction. "What's going on?" Although the battalion commander of the South Korean Army knew that this was a continuous attack, the speed and connection were too fast! "Not good!" The battalion commander of the South Korean Army suddenly understood that this was a conspiracy of the Americans, and that the continued offensive should be to let the South Korean Army be cannon fodder, and that it would be best to attack it; if it could not be attacked, the Americans would cover the enemy's position, wipe out themselves and the highland volunteers, and lay a better foundation for the next batch of attacking troops!

However, the battalion commander of the South Korean Army was still slow to react, because the American artillery once again exploded at 539.7 high ground!