Yangwuyu is a very inconspicuous small village at the southeast foot of Jinquan Mountain, before the war, there were twenty or thirty families surnamed Yang living and breeding here, so it was named Yangwuyu.

In addition to the Elephant Trunk Ridge that leans on the southeast foot of Jinquan Mountain in the north and is more than seven miles long, the Changyuan Mountain in the south stretches for more than 20 miles, which determines that the valley where Yangwuyu is located is a shortcut from many valleys at the southern foot of Jinquan Mountain to the east of Jinquan Mountain.

The Taiyue marching army advanced to the front line of Jinquan Mountain, and established a military camp here.

The main force of the Mongolian army needed to enter the northern part of Zezhou in order to meet the northward retreat of more than a dozen soldiers and civilians from Jincheng.

Seeing that the Taiyue camp army took the initiative to shrink to the southern foot of Jinquan Mountain, west of Changyuan Mountain, and put on a posture of inviting the king into the urn, Wu Su Dashi and Xiao Yiqing did not have the illusion of taking the plan and eating the Taiyue camp army first.

They mainly wanted to be able to block the Liang army's Taiyue marching army in the area west of Changyuan Mountain when the Jincheng army and civilians retreated northward, so that they could devote their main energy to dealing with the pursuit of the first and second central marching armies of the Liang army.

This determined that Yangwuyu and the two small villages on the south side of Changyuan Mountain were the strategic points that the main force of the Mongol army had to capture before advancing southward, and then used them as strategic points to build a defensive line against the Taiyue camp army that had retreated to the southern foot of Jinquan Mountain and Gaoping City.

After the fiasco of Yiguan, many generals of the Mongolian army were angry.

Due to the climate, the situation on the battlefield has taken a turn for the worse, and many generals of the Mongolian army still think that the defeat of the Yiguan Battle is a little worse luck.

They hoped that this battle would restore the supreme military might of the Mugul.

The Nahe clan was only officially incorporated into the Mugyu thirty years ago, and over the years, countless Nahe disciples followed the Usu clan to fight in the south and the north, and they had long regarded themselves as a branch of the Mugyu.

Over the years, the desert is extremely cold, every year in the cold season there are countless cattle and horses frozen to death, thousands of people are difficult to survive, and now it is difficult to move into the Jindi, where the water and grass are abundant and the climate is warm, who would want to be driven out again?

On the first day of entering the lunar month, he and his brothers Yan Jiang, Yan Yun and others led more than 8,000 people of the Yanyun Han army and more than 4,000 cavalry of his own clan, and before arriving at Yangwuyu, in the face of the fortifications built by the Liang army in advance, the Yanyun Han army placed a double-layer cast iron shield on the chariot horizontally, and pressed forward in clusters, launching a wave of charging like a wild wave.

Although the spring-arm bed crossbow was extremely penetrating, and could even tear a heavy cast-iron shield apart from 300 paces away, it had a slow rate of fire and could only be placed in front.

Yan Zhen thought that they placed more heavy shields in the front formation, and advanced forward with multiple columns and multi-layer shield formations, they could still effectively suppress the heavy fire of the Liang army's heavy crossbows.

At this time, the sky and the earth were cold, and the mountains were covered with ice and snow, which also limited the role of the fire oil canister launched by the Liang army with the scorpion crossbow.

Although it is inevitable that they will suffer certain casualties in the process of forcing the Liang army's fortifications, as long as the generals can survive the casualties and survive until the two armies engage and even fight together, the role of the Liang army's so-called sophisticated weapons will be limited to the greatest extent.

Yan Zhen was fully prepared for this, in addition to the heavy shields and shield carts equipped in the army, he also ordered the wooden doors of the houses on the left and right villages to be removed to strengthen the protection of the front.

After a fierce battle for half a day, in the end, the Liang army guarding Yangwuyu could not withstand the attack of the Mongol army completely regardless of casualties, and was unwilling to fight a war of attrition in Yangwuyu, so it was forced to withdraw from Yangwuyu and retreat to a low ridge four or five miles to the west to rebuild and organize a new defense line.

Knowing that Yan Zhen successfully captured Yang Wuyu, Xiao Yiqing rushed over as soon as possible.

Whether or not a solid defense line can be established in Yangwuyu in the future is directly related to the safety of the flanks of the southbound soldiers and horses.

"Don't have the illusion of luring this Liang army to the east of Changyuan Mountain and then attacking and annihilating on two fronts, even if the athletes of the Nahe clan are sleeping at the foot of Changyuan Mountain, they must not take half a step back from here......" Xiao Yiqing is the art of war teacher of Yan Zhen, Yan Jiang, Yan Yun and other Nahe disciples, he could not eliminate the ominous premonition in his heart, and warned the generals of the Nahe clan in a solemn tone.

Xiao Yiqing warned them not to be afraid of the cold and the frozen soil, and asked them to send more scouts to search the mountains on both sides to ensure that there were no gaps that could easily be interspersed by the Liang army and that the terrain was not in their control; They were asked not to be afraid of hard work on the west side of the valley, but to dig a few more deep trenches, and the excavated soil could be piled up, and the firewood could be cut down to melt the snow and ice, and poured it layer by layer, freezing into layers of interlaced ice walls in this icy and snowy cold weather.

Xiao Yiqing wants them to be honest, this deep trench and ice wall do not need to be coherent, and there must be more gaps in the middle for soldiers and horses to enter and exit.

In this way, the Liang army launched an offensive from the west, and they could not only use these deep trenches and ice walls to delay the Liang army's attack to the greatest extent, making it difficult for the Liang army's weapons to play a role, but the defenders could also launch a counterattack from the gap at any time, instead of blindly defending passively.

After the Mongol army had almost taken control of the area around Changyuan Mountain in the southeast of Jinquan Mountain and established a defense, it was not until the 6th day of the lunar month that its main force of 70,000 people surged south from the gap between Jinquan Mountain and the Ducheng Ridge like a black tide.

It is only one hundred and ten miles from Jinquan Shandong to Jincheng.

Such a close distance, in normal times, fast horses can run two or three times a day, and elite foot soldiers can cross the past in a day, but in the cold winter season, the wilderness is covered with thick ice and snow, and the seemingly spacious post road, hundreds of thousands of old and weak women and children rush up together, which is destined to become narrow and crowded, and the movement is also destined to become extremely slow.

In addition to the original 40,000 defenders of Jincheng, as the soldiers and horses behind the palace, they were responsible for dragging the Liang army Han Donghu's department (the first central camp army), as well as deploying 10,000 cavalry east of Zelu Post Road, in case the Liang army would penetrate to the Lingchuan County border in the east and attack their flanks, Wu Su Dashi and Xiao Yiqing personally led 60,000 cavalry into Gaoping County, and at the same time stared at the Liang army Kong Xirong (the first central camp army) in the southwest and part of the Taiyue camp army in the northwest.

In this way, a safe passage from Jincheng to Huguan was formed, which was convenient for the 100,000 Mengwu women and children stranded in Jincheng to retreat north.

On the 9th, it snowed heavily for a day, and the weather became more and more cold, which made the retreat of the Jincheng army and civilians to the north more slowly, but in the eyes of the Mongolian army, the same bad wind and snow made the situation more favorable to them.

On the one hand, they have a strong adaptability to the severe cold weather, and on the other hand, they have an absolute advantage in the size of the cavalry, and the heavy snow and the snow that does not reach the thighs will seriously hinder the pursuit of the main force of the Liang army, which is dominated by foot soldiers, from south to north.

Although Xiao Yiqing was by Wusu Dashi's side, in a stockade in the southeast corner of Gaoping County, his eyes were still fixed on the Taiyue marching army in the north of Gaoping County and at the southern foot of Jinquan Mountain, and he was also aware that the scouts had to report the movements of the Taiyue marching army every half day.

The thick snow will greatly delay the main force of the Liang army, including the first and second central marching armies, to go north, Yan Zhen and others

If they can successfully block the 30,000 elites of the Taiyue camp army in the west of Changyuan Mountain, then they can successfully bring more than 100,000 soldiers and civilians from Jincheng to Luzhou and rectify their positions in Luzhou.

Before nightfall on the ninth day, the elite soldiers of Su Lie, Chen Yuanchen, and Wen Yuan of the Taiyue marching camp army braved the heavy snow, camped from the rear and entered the defense line almost parallel to Changyuan Mountain, only six or seven miles apart, and assembled into two attack clusters, aiming at Yangwuyu and the Savage Peak on the south side of Changyuan Mountain.

In response to this situation, Wusu Dashi also transferred 5,000 cavalry from the southern front to approach Savage Peak from the south, so that if necessary, it could interfere with the Liang army attacking Savage Peak from the flank.

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On the nameless low mountain to the west of Yangwuyu, Li Xiu, Chen Kun, Su Lie and other generals were still wearing a layer of robes to protect them from the cold outside their armor, and the cold wind blew like knives, and the faces of the generals were frozen red.

"The captives are really cautious! They didn't even deliberately leave a flaw to lure us to the east of Changyuan Mountain to encircle and annihilate us! Su Lie frowned and said.

This side is only six miles away from Yangwuyu, the sky is clear, and the snow in the wilderness is dazzling snow, and they can see the enemy defenses near Yangwuyu clearly without the help of bronze sight glasses.

Wen Yuan led his troops to assemble on the defensive line seventeen or eighteen miles to the south, seemingly aiming the spearhead of the attack at the enemy troops on the front line of Savage Peak, but in essence, he assumed the role of covering the flank.

The real main direction of this battle is Yang Wuyu.

In addition to tearing through the enemy's defense line in Yangwuyu in the fastest time, they also need to quickly pass through Yangwuyu and enter the open area east of Changyuan Mountain to assemble before the enemy can react, so as to form an effective defense, so as to truly realize the action of "closing the door."

Su Lie and other generals have watched the test firing of the artillery at close range and know that its power is huge, but the artillery has not been put into actual combat on a large scale so far, and whether they can quickly capture Yangwuyu with the help of artillery, they are not particularly confident now.

They had hoped that the enemy's ambitions would be greater, and that the enemy would deliberately lead them to the east of Changyuan Mountain and then try to encircle and annihilate them, so that they could avoid the crucial link of storming Yangwuyu and opening up the passage to the eastern side of Changyuan Mountain.

Unexpectedly, the Mengwu people became so cautious this time, and they really only wanted to pick up the soldiers and civilians of Jincheng from beginning to end, and left more than 20,000 elite infantry in Yangwuyu and the area east of it.

They wanted to defeat the 20,000 elite infantry before the enemy's main force retreated, not to mention Su Lie, Li Yan and other generals, even Chen Kun and others, who had organized more than 30 artillery pieces in the mountains of the upper reaches of the Yichuan River for salvo drills, were not completely sure.

Of course, they also made a lot of plans, if the enemy's main force retreated earlier than expected, the Taiyue camp army was to capture Yangwuyu as the goal.

Even if a part of the enemy army is eventually sent out, there is no way to do it, first of all, to ensure that the overall strategic intent is realized, and not to be harsh on the pursuit of overly extreme results.

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The snow between the positions of the two sides has already been stepped on.

The weather is too cold, and the snow will not melt after being trampled by people and animals, but will freeze firmer, forming a slippery ice track between the bumps and bumps, and even need to use a knife and axe to chisel out the ice edges or lay weeds to prevent slipping.

Groups of Liang troops surrounded shield carts and crossbow carts, swarming to the west of Yangwuyu, and the front-line generals stopped at more than 500 steps away from the enemy's defense line and stood still, using chariots to form simple and practical protection, and then a team of generals spread out in turn, like layers of fish scales.

The battle formations were assembled on the edge of the left and right flanks, and the passage for artillery fire was made in the middle.

The flowering shell is still in the experimental stage, and the heavy front-loading smoothbore gun fires solid bullets, shooting as close to a straight line as possible at a small angle of inclination and as close as possible, so as to avoid the impact of the solid bullets being absorbed by the soil when they first hit the ground. Only by firing at a small angle of inclination can the solid bullet achieve multiple jumps in the enemy's position, so that the power can be exerted to the extreme.

This requires the front-line soldiers and horses to make way of a considerable gap in the firing path of the solid bullets.

In the eyes of the Mongol army, it was thought that the Liang army formed a large conical formation on the left and right flanks in front of the Yangwuyu defense line, and opened up such a large gap in the middle, which must be convenient for heavy weapons such as cyclone cannons to be pushed from it to the front of the formation to attack the fortress.

Of course, the Mongol army would not let the Liang army get their wish, and when they built the defensive line, they left a gap between the trenches and the ice retaining wall, which was convenient for sending troops to counterattack the Liang army's whirlwind artillery position.

Standing on top of the Yangwuyu Wall, behind several trench walls, Na Heyan Zhen also noticed the artillery positions three miles away, but the black cast iron pipes made him think that these were newly made by the Liang army, similar to the reed ballista or whirlwind cannon, and thought that they needed to be advanced within 500 steps of the trench wall to play their role.

And the range of 500 paces is exactly the effective distance of the cavalry's extremely fast charge.

Even if you know that the casualties of the cavalry in a short-distance charge will not be small despite the heavy crossbows of the Liang army, if you can assault the Liang army's whirlwind cannon and other weapons positions, and destroy the Liang army's weapons as much as possible, even if hundreds of elites will die in a single charge, it is a sacrifice that must be paid.

Of course, in order to reduce the casualties of the attacking cavalry, Na Heyan would really arrange for a part of the foot soldiers to gather around the shield cart to kill, and force the Liang army on the flank as much as possible, as if the Liang army was counterattacking the charge.

At this time, Na Yan Zhen still didn't know what a bleak fate would greet him.

When the front-loading smoothbore artillery was fired, Na Heyan Zhen first saw the cast-iron pipes in the Liang army's array spew out clusters of fire, and it was about five breaths later that he heard the deafening roar of the thunder ship, and the shaking of the earthquake mountain came from the soles of his feet almost at the same time.

He calmed down, and when he opened his eyes, he saw that the outermost two walls of ice and earth, which were mixed with snowmelt and dirt, had collapsed, and the frozen crumbs of earth were like broken bricks and stones.

Although most of the frozen ground was blocked by the ice and earth walls behind, there were hundreds of soldiers preparing for a counterattack behind the first and second ice and earth walls, and at this time they had been swept down, and the scene was terrible.

What's going on?

What kind of artifact did the Liang army deploy at 14,500 paces, it was terrifying!

Na Heyan really intuitively felt that his hands and feet were cold and his body was weak.

These ice and soil walls are not high, and most of the body will be exposed when the soldiers ride on war horses, but each ice and soil wall is nearly a zhang thick, and under the severe cold of dripping into ice, the layers of molten snow are poured on, and the ice is solid.

In order to repair ice and earth walls and trenches, he requisitioned all the old and weak women and children who could be forcibly requisitioned on the left and right, and he didn't know how many people were killed alive with iron whips, so that in such a short period of time, he completed what he thought was a fairly complete defense system.

Na Heyan Zhen had done experiments before.

Using a whirlwind cannon to throw hundreds of pounds of stone projectiles at a distance of 300 paces can blast the ice and earth wall apart, but you want to block it

The ice wall collapsed, and it would take one or two hundred strokes.

Of course, the accuracy of the whirlwind cannon is still a little unsatisfactory, even if the Liang army trained a skilled trebuchet gunner, in 400 steps to smash the one-zhang high city wall, can hit one of the three, it is already quite remarkable.

And look at the black, iron-like projectiles, except for a few overheads, almost eight or nine times out of ten they bombarded the first and second ice and earth walls with great precision, destroying the two ice and earth walls like a withering and decaying block, and the flying and splashing of hard soil blocks also became a deadly blade for the ice and earth walls to be on standby.

However, the iron bullet that crossed over their heads fell in the middle of the village, destroying several earthen houses like an ice wind bullet, and one of the soldiers was directly hit by the iron bullet, and his body was torn to pieces by the iron bullet along with his armor.

For a moment on the battlefield, the atmosphere fell into a deathly silence.

Most of the generals of the Liang army were also a little frightened, and they dragged some artillery to the garrisons everywhere for test firing, so that the generals could adapt, but one or two bottles of light front-loading smoothbore test firing, and twenty-four bottles of heavy front-loading smoothbore guns were fired in a volley, which were completely two concepts, okay?

Fortunately, several teams of cavalry were deployed at a distance, and if it weren't for the roar of the horses, it would not be so easy to control.

And the Mengwu defenders within the Yangwuyu defense line, everyone is thinking about a question in their minds, this is the newly created combat weapon of the Liang army? Did the Mugultures offend the gods of heaven and ask Liang Jun to take out such a divine weapon to punish them?

There were even a few soldiers who knelt down and prayed to the sky at this moment.

Na Heyan is really the main general, and he is much calmer than most of his generals, immediately treating the casualties, counting the number of casualties, and letting people pick up an iron bullet in front of him.

He found that the iron bullets fired by the Liang army's new weapons were much smaller and heavier than the stone bullets fired by the whirlwind cannon, weighing at most 20 catties, which was only equivalent to the weight of a medium-sized loose stone bullet from the whirlwind cannon.

However, when it comes to power, such an iron bullet is more than ten times that of a large stone projectile weighing hundreds of pounds and fired with a traditional cyclone cannon.

Counting the terrifying accuracy, isn't it that Liang Jun's bottle of new weapons can be worth the traditional twenty or thirty cyclone cannons?

Of course, what made Na Heyan really desperate was the terrifying range.

If the Liang army's armament position was four or five hundred steps away, he might still be able to consider killing the interception of the elite Liang army regardless of casualties, forcibly assaulting the past, and destroying the Liang army's armament, but now that the Liang army's new armament is 1,400 or five hundred steps away, there are thousands of Liang troops on both wings who can fill in the middle barrier area at any time, forming several or even more than a dozen interception arrays like copper walls and iron arms, how can they assault the Liang army's armament position?

Na Heyan really regretted that he didn't pull his soldiers out of Yangwuyu before the battle, and put on a posture of fighting to the death with the Liang army, in that case, he would be able to use cavalry to attack the Liang army's array from three directions, instead of being now restricted by the mountains on both sides, with only a narrow assault passage more than 300 steps wide left in the middle.

"Boom!" There was another thunderous explosion, and the already broken walls of ice and soil on the periphery collapsed one after another, and the hard soil burst out in all directions.

Fortunately, the front side were all old soldiers, and there was a lesson from the first bombardment, and the soldiers behind the outer ice and earth walls were all withdrawn, and they also knew that they would use heavy shields to resist the flying soil, and this time the casualties were not as tragic as the first wave.

However, there are two iron bullets flying over the head, falling into the village, and after landing on the ground, they bounce up again, and after four or five times, they smashed the wall of the middle wall before being embedded in the rammed earth wall, and these two iron bullets went all the way, and almost a dozen people and horses were either killed on the spot, and the bones were miserable, or the arms were smashed and hit hard.

"How many breaths have passed since the first blast?" Na Heyan really asked the army around him, he wanted to figure out the frequency and time interval of the Liang army's new weapons, which would directly determine the tactical arrangement and rhythm of the assault from the village.

"One hundred and forty breaths!" Join the army and return.

The gap time is not much longer than the launch of the scorpion crossbow and the spring-arm bed crossbow, which is really chilling news, which means that the Liang army will not intercept in front of the formation, and the infantry and cavalry will charge together to kill the Liang army's battle weapon position, and it is very likely that it will withstand two bombardments.

In addition to the twenty-four large iron pipes, Na Heyan really noticed that on the two wings of the Liang army's armor array, there were also small cast iron pipes that were almost double in size.

This is very likely to be a small new type of warfare weapon with a relatively short range for the Liang army.

Na Heyan Zhen secretly estimated that the infantry and cavalry would charge in concert and take a salvo, and if they were unlucky, they might kill or injure two hundred people at once, and the more important thing was that the charging array would be torn apart, and it would be difficult to break through the interception array of the Liang army, and the only feasible combat plan was to send troops out and entangle the soldiers and horses on the two wings of the Liang army's front to fight!

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As Na Yan Zhen expected, the firing range of the light front-loading smoothbore gun was also smaller than that of the heavy front-loading smoothbore gun, but it was definitely more than the distance between the artillery position and the western wall of Yangwuyu.

The reason why there are no light front-loading smoothbore guns that are more than twice the number fired at present is that the light smoothbore guns have a small charge, and the damage to ice and rammed earth walls is limited when they fire solid shells; With the exception of two firing calibrators, the 48-bottle light smoothbore gun was kept on standby.

When they saw the large-scale assembly of the Mongol troops in Yangwuyu, there were signs of attacking the two flanks of their forward line from behind the defensive line, and the forty-eight light smoothbore guns could be regarded as the opportunity to show at this time.

At a distance of 1,500 paces, the light smoothbore cannon has limited destructive power against the ice and earth walls and rammed earth walls, but the lethality of the flesh-and-blood Mongolian soldiers and war horses is still terrifying.

Luoyang College from Han Qian 20 years ago to develop new learning, a lineage continued, long formed a strict new learning development system, Luoyang College developed a smoothbore gun, put into actual combat, the technology has been quite mature.

The cast iron bore tube and solid bullet have extremely high accuracy to ensure a considerable degree of air tightness, and the recoil cushioning and resetting device can effectively ensure the stability of the trajectory.

Supplemented by sights, coupled with gunners who have spent half a year training and actual combat drills, the 48 12-pound solid bullets fired in a salvo not only accurately fell into the dense array of enemy troops killing Yangwuyu, but also triggered a large proportion of ricochets, sweeping down a large area of enemy soldiers and horses like a harvester.

Although the direct casualties may only be one-twelfth of the people who were killed from Yangwuyu, but looking at the tall and sturdy war horses, they were directly pierced by iron bullets that were only slightly larger than their fists, and even three or four war horses were pierced by an iron bullet in a row, even if the Mugwu people were known for their ferocity, how many soldiers were left at this time and still had the fighting spirit and courage to continue fighting?

Not only were the enemy's assault array directly scattered, some of the soldiers fled in horror, and even a considerable number of enemy soldiers stood on the battlefield in a panic and dazedness, and even knelt on the ground and prayed to the heavens to confess, but they were greeted by crossbows and arrows as dense as a swarm of locusts shot by the beams on both wings of the forward line......