It took another two days for the earthen wall to be completely built. After it was built, the earthen wall was about three meters high and two meters thick. It was parallel to the south of Hengyuan Fort, and the distance was only two hundred meters away. The Perak troops in Hengyuan Fort were talking about it.

Why is the earth wall used? The new vassal army drove a large number of civilian timber towards the earth wall. This made Cao Ergou, who was standing at the top of the wall of Hengyuan Fort, urgently order to fire. He knew that the timber had only one purpose - to erect siege weapons.

.Although the walls of Yokohara Castle are strong, they cannot withstand the bombardment of trebuchets all day long.

Several artillery shells landed among the crowd in the open area, blowing up a large area of ​​the new auxiliary soldiers and civilians who were heading towards the earth wall. The rest of the people saw the situation and dispersed. The impact point of the shells was half a mile further than the earth wall.

It was nearly a mile away from Hengyuan Fort. They obviously did not expect that the artillery could hit such a distance. In fact, the artillery this time was still aimed at the new auxiliary troops walking behind, so the casualties suffered by the civilians were only a fraction of the new auxiliary troops.

.This shelling really cast a psychological shadow on the newly attached troops. The Pili Army artillery can actually shoot so far and is so powerful. Is there any chance of winning? How can this battle be fought? It’s just that they said it doesn’t count. In Mongolia

In people's eyes, they are just cannon fodder.

Several more heads were raised on the flagpole at the entrance of the new military camp. Under the watchful eyes of the Mongolian cavalry, the soldiers of the new military camp escorted the civilians towards the earth wall. But as expected, they were violently shelled again, and then fled.

, then the leading new auxiliary army was beheaded by the Mongols. After repeating this several times, very little wood was delivered to the earth wall, but the number of new auxiliary soldiers killed and injured reached hundreds, including migrant workers.

More than a hundred people were killed or injured. The Mongolians behind the formation also saw that the civilians were not the focus of the artillery attack, but the new auxiliary troops. At this time, the Mongolian army commander Mi Zhehuoli also knew that if the artillery attack was not dealt with,

Threat, the new annexed troops will only die more and more, and their morale will collapse sooner or later. If these cannon fodder are all dead and run away, they cannot let their cavalry attack the city. As for giving up the attack and adopting the method of persuading surrender?

This was still a possibility before the Perak Army and Navy attacked Chengdu City. Now not only the arrogant Mongolians like Mi Zhehuoli will never agree, but even Liu Heima, who advocates simultaneous suppression and appeasement, dare not agree. The consensus among the Mongolians is now,

We must attack the mountains and massacre all the people under the rule of the Perak Army before we can vent our hatred of Chengdu being attacked.

Looking at the dead and wounded all over the ground, Jia Gulong, the general in charge of the siege of the Mongolian army, fell into deep thought. The deep-rooted concepts formed by years of siege experience have been broken by the bloody reality. He, like Yelvmaizhu, is a Khitan

, is also a rare siege expert among the Mongols. Liu Heima built a new Chengdu city on the ruins of the old city in only seven days after his raid on Chengdu, which is full of towers, battlements, and trenches. This is his contribution.

After arriving at Yokoyuan Fort, he kept looking carefully, trying to find out the defensive weaknesses and ways to crack the artillery. He used earth walls to defend the artillery. But he did not expect that the range of the artillery could reach one mile. He

He had also heard that the Thunderbolt weaponry was extremely powerful, but he didn't take it to heart. He only heard the nonsense about the defeated troops. As a general who has been besieging cities for many years, the most powerful defensive weapons he has ever seen are still trebuchets and trebuchets.

Ballistae. As for the artillery, whether it was the artillery in the Mongolian army or the artillery in the Song army, it was just powerful. The flames and smoke it spewed were terrifying, but in terms of power, it was not as powerful as the trebuchet.

In Jiagulong's ancient plan, suppressing the Pili artillery was the key to the siege. His idea was to transport materials to the earth wall and use the shielding of the wall to assemble them into siege weapons. For this reason, the earth wall

The height and distance from Yokoyuan Fort have been carefully calculated, so that the trebuchet can be protected by the earth wall, and the stones shot in a curve can reach Yokoyuan Fort. The only problem is how to get the materials and personnel to the earth wall.

It became a problem. When Jiagulong was in distress in ancient times, a small school under his command solved the problem. This small school was originally a tunnel soldier of the Jin Army. His suggestion was to dig out a sloped tunnel from outside the range of the Pili Army's artillery.

A trench that leads diagonally to the earth wall. As long as the trench is dug wider and deeper, people can walk on the bottom of the trench to transport materials to the earth wall. After listening carefully, Jiagu Longgu belt exclaimed, and he immediately

Ordered people to execute it. This method is actually the civil engineering work of later generations. The method is a bit clumsy, but except for the larger amount of work, it is actually not bad at dealing with firearms. As for the manpower needed to dig trenches, the Mongolian army is not lacking at all.

Not to mention the tens of thousands of civilians, even the thousands of newly attached troops are excellent laborers.

Under the ancient order of Jiagulong, thousands of people dug dozens of trenches at the same time. The scene was very spectacular. This scene obviously fell into the eyes of Cao Ergou at the head of the city. At first, he did not know the Mongolian intentions.

When the trench was completed, when the civilian husband and the newly attached soldiers advanced from the trench towards the earthen wall with materials, he understood the Mongolian trick. However, the trench had already been dug, and shelling would be of no avail. In fact, Cao Ergou also died.

People shelled the trenches, but the effect was unsatisfactory. The shells falling on the ground could not cause harm to the people in the trenches at all. Even if the shells occasionally fell into the trenches, they were blocked by the trench walls, and only one or two unlucky people suffered.

It took the Mongolian army another three days to assemble dozens of trebuchets. These trebuchets can launch stones the size of human heads, which is also a great threat to Hengyuan Fort. Such large stones can be strengthened with iron and cement to Hengyuan Fort.

The front wall that has passed through will not cause much damage, but the relatively weak defense of the fortress gate and the top of the city wall poses more threats. In order to prevent the impact of bows and arrows and rainy weather on the use of artillery, a roof was added to the wall of Hengyuan Fort.

The cover and breastwork cannot withstand the continuous blows of trebuchets. At present, the fortress guns of Yokoyuan Fort fire straight ballistics and cannot threaten the trebuchets behind the earth wall. To deal with the targets behind the earth wall, the tigers need to shoot in a straight direction.

Crouching Cannon. Just when Cao Ergou sent people back to Wanjiaping to get the Tiger Crouching Cannon, and was preparing to send people out of the fort to raid and destroy the trebuchet, the trebuchet opened fire. For a moment, the rocks that came with the sound of wind were smashed.

The head of Yokoyuan Castle made a loud banging sound, and from time to time there were screams of people being hit. Fortunately, the falling stones were only the size of fists. In addition to smashing many objects, only a few people were killed and injured. I don't know much about the siege equipment.

Tang Xiangwei, the sixth company commander, explained to Cao Ergou that this trebuchet was actually a trebuchet commonly used by the Song Army. Its main function was not to destroy city walls, but to kill and wound people. Moreover, this distance had reached the limit of the trebuchet. If

Any larger stones will greatly reduce the service life of the trebuchet, and it will be damaged after just a few shots. Judging from the stones that just fell, the Mongolian army just wanted to suppress the artillery of the Perak Army and provide fire support for the siege army.

Tang Xiangwei's words made Cao Ergou give up the idea of ​​​​leaving the fort for a surprise attack. If he leaves the city now, he will inevitably have a hand-to-hand battle with the new auxiliary troops protecting the trebuchet. There are hundreds of new auxiliary troops surrounding the trebuchet. Cao Ergou believes that with three

A hundred people can defeat them, but they will also suffer heavy casualties. Compared with the 5,000 new annexed troops, the Perak Army in Hengyuan Fort only has 600 people. Even based on an exchange ratio of 1:5, the Perak Army will suffer casualties.

Can't afford it. Moreover, the Mongolian cavalry is still watching from a distance. Although the traffic trench leading to the earth wall affects the mobility of the cavalry, they can walk to the earth wall and shoot with bows and arrows, which will cause the perak army to destroy the trebuchet outside the fort.
Chapter completed!