The scorching sun is basking on the loess without greenery, the military tents are linked, the battle flag covers the sky, except for the four hundred steps under the city, there is no open space in the north and west of the city, and there is no difference between the camp and the camp, only the battle flag of the word 'Qin' and the battle flag of the word 'Wei' fluttering in the wind.

The siege had lasted more than half a month, during which time there had been an attempted attack from the north and west, all of which were easily repulsed by the defenders. At this time, outside the city, the Qin and Wei armies were building a large number of long walls - four hundred steps away, several long walls were being built. These long walls are excavated on the spot, and the soil is turned out and poured into the wooden building, which is compacted, and the width of the rammed is up to one zhang. I didn't see any effect for a day or two, but after four or five days, a few long walls had been repaired to a height of eight or nine feet, a dozen steps long.

"Qin Jun, how is this?" The fastest progress was in the north where the Qin army was stationed, and when he heard about this, even Chen Jian couldn't help but go to the city to look.

"I don't know." When defending Chengyang, the Qin army did not build such a wall, and Chen Bu did not understand why.

"County duke, this seems to be the road of the king of Han." County Cheng Chen Bi traveled all over the world when he was young, and he can be regarded as well-informed.

"Yongdao?" Chen Jian was puzzled by the Yongdao that was carried forward by the Qin people. "What's the use of this?"

"It is to cut off the inside and the outside, so that the king's deeds may not be known." Chen Bi explained. "You see, the county princess, the two walls are only a few zhang apart, and the inside is the road. People walk in it, and they can't see it outside the wall, which is Yong. ”

"Reasonable." Chen Bu also nodded, but he smiled again: "Don't the Qin people know that the stone bullet fell from the sky?" What is the use of building a wall? ”

"Look, General." Before Chen Bu finished laughing, the right Sima Chen Bu stretched out his hand and pointed into the distance. "The Qin people are covering it with whirlpool."

Lu Lijing is getting better and better, seeing farther and farther, and getting clearer and clearer. In the round field of vision, a group of ministers at the front of the long wall are lifting several zhang long histories up the wall, and these frivolts are horizontal on the two walls, side by side.

"Not good!" Looking at the position where the long wall was aligned, Chen Jian took a cool breath.

Beads of sweat also appeared on Chen Ke's forehead, he wiped a few handfuls of sweat in a row, and said with a forced smile: "This Qin people's skills are poor. The stone bullet weighs 400 catties, and it will definitely be able to smash these woods from the sky, so don't worry about the county magistrate. ”

"I hope so." Chen Jianxin's heart is still cold, if this kind of Yongdao is repaired to the city, the crossbow and trebuchet will no longer be able to kill and injure the Qin people. Now the only hope is that the Yongdao project is huge, and they have already withdrawn their troops when the Qin people have repaired to the city.

"Do you know who is guarding the city?" The shogunate under the banner of Jing was only a little cool in the morning, and Xin Wu drank a cup of Chu tea before asking.

"According to the report of the marquis, the people who defend the city are not allowed to be Chen." Xin Sheng replied that he was the vanguard of the Qin army, responsible for screening and reconnaissance.

"Chen can't? The person who guarded Chengyang last year? "Xin Wu entered Chu from Magu last year, and did not go to Chengyang.

"Yes, yes." Xin Sheng replied. "It is said that this man is a mediocre general."

"Vulgar?" Xin Wu thought about it when he heard this, but did not nod. "Even if they are mediocre generals, they also have crossbows and stone throwing tools to help, so that our army cannot get within 400 steps of the city, and can only build a road. But I don't know, when will this path be cultivated? ”

"General, Yongdao is not a city building, and it does not take time." The chief engineer of the Shaofu and the Mo family's Juzi Yan Wuyi was also in the shogunate. "If the Jing people do not send troops to stop them, 1,500 people will be able to complete the Yongdao in 30 days."

"Thirty days?" Yongdao is not a city wall, its width is no more than one zhang, and its height is not more than nine feet, but the master engineer said that it can be completed in 30 days, Xin Wu still doesn't believe it.

"Yes, yes." Yan Wuyi's unquestionable appearance. "Digging, transporting soil, and tamping, more than 100 people can build a road in one day. If there are 45,000 people, they may be able to build a road in one day. It's a pity that the night and moon are very bright these days, and we can't build the city at night. ”

Siege warfare is also civil engineering and construction warfare. The attackers and defenders will lead the battle, and the engineers on both sides will fight with wits. Since the defenders of the city have used crossbows and trebuchets to screen the city for 400 steps, then I will build a road; Stone bullets fall from the sky, then I will cover them with wood; The stone projectiles are very heavy, so if I add more wood and cover it with earth, I can always put my troops outside the moat.

In the following days, the road was built unhurriedly, and the daily progress was only a few steps. On this day, when the trebuchet bombs that had been prepared in the city suddenly attacked, the iron bullets rained down, and the subordinates who built the wall were either killed or wounded, and scattered in a hurry. The Chu pawns at the head of the city immediately shouted to celebrate, and the approaching road made them uneasy, and now they finally don't have to worry about it anymore.

But in the afternoon, several huge rushing cars were pushed out of the Qin military camp. The height of the car is nearly three zhang, the width is about two zhang, and the length is about five or six zhang, and its upper part is wedge-shaped. The car did not rush to the city, but pushed to the end of the long wall, and after removing the wooden trees that had been erected horizontally, it slowly advanced across the long wall in the direction of the city, which was equivalent to covering the long wall.

Everyone knows the small car that crashes the door, but this kind of huge car that crosses the wall is a little unrecognizable. At three hundred and fifty paces, the trebuchet began to drop bombs. This time, the iron bullet no longer smashed the surface, but the wedge-shaped roof of the car.

'Boom, boom, ......boom', in the middle of the flying sawdust, four hundred pounds of iron bullets directly smashed several huge holes in the rushing car. The Chu pawns at the head of the city shouted again, and even the guard general Chen Bu couldn't help but shout long live.

"Yu Juzi, Jing people use iron bullets, iron bullets are extremely heavy, unstoppable, and the car still needs to be fixed." Yan Wuyi, who was watching this scene, had a cold face, and the ink man who ran over fell to the ground and bowed.

"Killed." Yan Wuyi coldly spit out two words. The left and right immediately dragged the man out, and the cries for help stopped abruptly outside the tent.

"The Jing people actually used iron bullets instead of stone bullets, and iron bullets were unstoppable, so they could only build walls at night." Ye Tunnel expressed his opinion.

"No! It is necessary to build a car that is indestructible. Yan Wuyi's tense right hand waved vigorously, and his tone was unquestionable. The Mo family and the Lu Di craftsmen began to fight hundreds of years ago, and the crossbow and trebuchet should be made by the Lu Di craftsmen, and the Mo family must not lose to the Lu people.

"Yu Juzi, the thickness of the wood used for the car has been built is up to three feet, and if it is rebuilt, I am afraid that only four feet of logs can be used." The engineer on the side suggested. Four feet is already 92.4 centimeters, and only logs can be used for such a thickness of wood, and it must be a hundred-year-old tree.

"Then make a car out of four-foot logs." The iron bullets thrown from the city were endless, and the walls of the rushing cars had been smashed, revealing the frames inside. "Also, elm wood is the hardest, so you should use elm wood to make cars."

"Respectfully." When the engineer heard that elm wood was to be used, he had some difficulty. Elm wood is extremely hard and not easy to process.

"Yu Juzi, the general invites Juzi to the shogunate." Someone told him outside the tent. His own car was smashed by the iron bullets fired by the trebuchet of the Chu people, and the Chu soldiers in the city cheered, and the Qin soldiers under the city were a little panicked. This is a visible destructive force, and everyone can't help but think in their hearts, such a huge rushing car can't stop the iron bullet of Jing people, so how can our flesh and blood body stop it.