Li Laoer asked someone to reply to Sun Chengzong: "We can still support it! As long as we can survive tonight, the third line of defense behind can build a real city!"

About a hundred steps behind the second line of defense was the third line of defense. The third line of defense was filled with people. The civilians recruited from the people were under the supervision of the minor officials, constables, officers, Zaoli, and Bai servants in Tongzhou. They were working hard to dig deep trenches, and increase the height and widen the earth walls.

The original earthen wall was five feet high and three feet wide. A few days ago, the villagers had poured water on the earthen wall. After a night, the earthen wall could be as hard as a stone.

Now, under the command of the yamen officials, the civilians are carrying baskets of soil and carrying out a project to increase the height and width of the soil wall. In fact, it is very simple. Pour the soil on it, pound it with a wooden hammer, and pour water on it after completion. After a night, the wet soil wall will freeze and be extremely hard.

The civil servants just increased the height of the earth wall to two feet high, and after adding the female wall, it reached two feet high and two feet wide. This was already the height of a regular city wall. After the civil servants repaired the city wall, they first laid a wooden fence on the top of the city. The wooden fences were made of wood as thick as an adult's arm and were 8 feet high. In front of the wooden fence, a three-foot-high female wall was built with bricks and stones.

After that, the villagers poured water on the newly built earthen city, and in just one night, they could freeze extremely strongly.

In front of Tucheng, the trenches were expanded to three meters wide and one meter deep. Such city walls and trenches were almost the same as formal city wall trenches, which was equivalent to expanding the area of ​​Tongzhou City by one hundred meters, and the hut area was protected within Tucheng.

But it took one night to become solid. Li Laoer turned his head and shouted to his soldiers and the people who helped defend the city: "Brothers! Let's hold on! As long as we block the Tartars before this evening, we will win!"

A three-meter-high viewing building was erected in Huang Taiji's central army camp. The fat Huang Taiji couldn't get up by himself, so he asked Sahalian to go up.

Sahalian climbed up the Wangtuan along the ladder, stood on the Wangtuan, looking at the Ming army's defense line from afar. He found that the third line of defense of the Ming army was under intense construction, so he reported to Huang Taiji: "Khan, if you cannot conquer the second line of defense of Minggou today, you will not be able to fight tomorrow! Minggou built a Tucheng on the inside and poured water on it. In just one night, the Tucheng would be as strong as the Shicheng."

Huang Taiji felt sorry for the losses he had suffered in the past few days. Except for his own two yellow flags, the other six flags suffered considerable losses, especially the two white flags suffered the most.

But if Huang Taiji gave up like this, he would be unwilling to accept it. If he could break through the defense line of the Ming army and plunder more than 100,000 Ming people around Tongzhou City, he could still make up for the losses. Otherwise, the flag officers he lost would be in vain. After leaving the customs, he would still find ways to go to various mountains and forests to plunder the Jurchens to fill the six flags and supplement the losses of the armored people and flag officers.

Thinking of this, Huang Taiji said to Sahalian: "You ask someone to send orders to help the Six Flags speed up the attack. If it cannot be conquered in the evening, fight overnight! By the morning of tomorrow, our army can only give up."

If he cannot get the benefits, Huang Taiji will not spend all his time and troops in Tongzhou in vain. He has to consider the cost and benefits of fighting. Only when the profit exceeds the cost will Huang Taiji consider strong attacks.

In front of the second line of defense, Li Laoer led his brothers and Min Zhuang who helped defend the city and once again repelled the attack of the Later Jin army.

Dorgon was already red-eyed. He suffered a total of three losses in Li Lao Er's hands, and suffered heavy losses. He vowed that he must conquer Tongzhou and kill Li Lao Er to relieve his hatred.

The Later Jin army pressed up again, and the dense shield chariots slowly advanced. The Ming army concentrated artillery and bombarded the shield chariots violently, destroying six shield chariots. Unfortunately, there were too many shield chariots in the Later Jin army. Small cannons such as Folang machines and tiger squat cannons were too small to concentrate ten gates to destroy a shield chariot, which could not resist the push of the Later Jin army's shield chariots in front of them.

The shield chariot came up, and the armored men and Mongolians following behind the shield chariot took bows and arrows, shooting round after round of arrow rain, covering the Ming army's positions with dense arrows.

The Ming army on the earthen walls used various weapons to greet each other, such as cannons, bows and arrows, muskets, wolf teeth slap, yaksha slap, flying stones, ten thousand enemies, etc., and even though the Later Jin army was protected by shield chariots and shields, the number of casualties still rose sharply.

At this moment, two huge chariots were suddenly launched behind the shield formation of the Later Jin army. They were bottomless four-wheelers. The bottom was a low frame. There was no bottom plate on the frame. The surroundings and tops were covered with baffles made of thick wooden boards. They were shaped like an upside down ship. The pointed top could cause the huge rocks smashed from the city to slide off the edge. The thick wooden board was also covered with a layer of wet cowhide, and moist soil was applied to prevent fire attack.

There are more than a dozen Baoyi Aha hidden in each car, which is used to push the cart forward.

The Ming army concentrated artillery fire on the front of the city and fired fiercely at the storm chariots that were advancing. However, the two storm were extremely strong. The storm and the squat cannon shells were shot up, like tickling the storm and had no effect.

The Ming army's red cannons were far behind. When they were discovered, several red cannons had just fired a round of shells and had no time to load them. After finally loading the shells, the Later Jin army's ramparts had already advanced under the earth wall and entered the dead corner of the red cannon and could not attack.

Baoyi Aha in the car opened the front baffle. With the help of the thick wooden boards on the top of the head and both sides, Baoyi Aha waved the iron pickaxe and dug the earth wall desperately.

The earth wall of the second line of defense was also watered and frozen extremely hard. Baoyi Aha dug for half an hour and only left a few white marks on the earth wall.

The fireproof performance of the car was excellent. Even if the Ming army smashed the tinder tank on the front of the city, it would be difficult to destroy this strong siege weapon. Baoyi Aha, who followed closely behind the car, rushed up with a wet felt and covered the roof of the car that caught fire, and soon extinguished the ignited flames. Of course, Baoyi Aha, who was extinguishing the fire, was shot to death under the city on the spot.

Li Laoer looked at the carriage near the earthen wall under the city, and sneered in his heart: You can dig it, it’s amazing to dig it off! If you really want to deal with such a car, I have some solutions, but I just can’t help using it.

The Ahas in the car sweated heavily and shouted the labor mail to dig hard. Although it was the cold winter outside, the Ahas took off their shirts and dug them hard for an hour. The earth wall was dug less than a foot deep.

On the side of the siege car, the Later Jin army asked the Mongols to climb the stairs and attack desperately on the earthen walls. However, they were beaten by the Ming army and rolled down one by one. After finally climbing up a person, they were chopped into meat paste in a blink of an eye.

The Later Jin army's carriages were eventually destroyed. The Ming army continued to attack with turbulent tanks, huge rocks, and rockets, and finally smashed the two solid siege cars into a pile of broken wood.
Chapter completed!