West cloud tower.

The poisonous fog army has appeared, and the atmosphere on the tower is extremely dignified.

Far better than your own forces, powerful siege equipment, and the cold killing machine gradually distributed by the enemy camp.

Everything made the soldiers upstairs of Xiyun city feel that they were pressed with heavy stones one after another.

Among the 3000 troops in Xiyun City, Chen Ze sent the 1000 old, weak and disabled soldiers to the two city gates in the southeast. Together with the private soldiers of Cao Lang and other generals, it ensured that the two city gates had a minimum guard to prevent accidents.

As for the remaining 2000 people, they are composed of 1000 recruits, 400 city defense teams and six blockade money sentries.

Chen Ze broke up the two thousand people and mixed them up, mixed the recruits into the Veterans' queue, and then divided them into two teams of one thousand people.

One thousand of them were patrolling the city tower, while the other one thousand went down first to rest and try to ensure that the soldiers guarding the city had sufficient physical strength.

Of course, at the beginning of the battle, when the soldiers are in danger and will be fierce, where can we take care of these many.

Even if there are veterans next to each recruit, the faces of these recruits who have not experienced the battle still show panic and tension from time to time, and what keeps them calm is a teenager standing in the middle of the city tower.

Chen Ze.

He hasn't been down since he went to the top of the city tower. He has been standing behind the low wall and observing the enemy's every move. His calm face is the foundation that supports the recruits to continue to stick to at the moment.

Poison fog army.

After general Fang gave an order, hundreds of Engineering soldiers with sandbags on their shoulders rushed out of the array and began to bury the trench in front of the city gate under the cover of knife and shield hands.

As Xu Qing thought, the shallow and narrow trench dug by Chen Ze's order was of no great use. He went down with several bags of sandbags and stepped on it with his foot.

Although the trenches were dug very long, they didn't have to fill them all. They just needed to make a passage for large siege equipment to pass through.

To be on the safe side, general Fang even sent extra men to fill out five passages in sections, which was enough for the siege.

It can be seen that general Fang has worked hard on these fugitives in this year. Just looking at the skilled landfill techniques of the engineering soldiers, I don't know how many times he has been trained.

Soon, seven or eight trenches were quickly filled out of the road, and the engineers pushed rapidly from 500 meters in front of Xiyun city to 300 meters.

Of course, because the distance is getting longer and longer, in order to save the time of carrying sandbags back and forth, general Fang is also constantly sending more engineers into the battlefield.

"Who is in charge of Xiyun city? Is this guy sick?"

The impatient general Fang couldn't help shouting, "what's the use of making so many trenches? Idiot!"

Scolding and scolding, seeing that the night was approaching, he had to send more people again and again. All the 300 engineering soldiers reserved soon went to the battlefield, and even more than 600 logistics arms were sent to help carry sandbags.

"Sir, let's just watch?"

At the head of Xiyun City, Xu Qingzhong, who was disappointed, came back again. He only took a look at the situation outside the city and Chen Ze, who was as motionless as a mountain. He was even more discouraged.

You said you made so many trenches just to consume hundreds of sandbags and a little time?

It was useless to dig. It was easily filled by the other party. It was less than half an hour before the other party easily pushed 200 meters. Xu Qing looked left and right. He didn't see what role these trenches played.

Chen Zemu did not squint, but said quietly, "can an archer attack?"

Without looking at it, Xu Qing said, "you can't attack!"

Not to mention the archers, at the moment, all the long-range attack means of Xiyun City, even including the demolished catapult, can not attack a distance of 500 meters away.

This is also the reason why the engineering soldiers are confident and enthusiastic.

"Since I can't attack, what else can I do if I don't look at it?"

Chen Ze asked with a smile.

"..." Xu Qing opened his mouth and a burst of anger in his chest. He endured it and endured it. It was not easy to force him down. While shaking his head decadent, he was roaring at the bottom of his heart: "if you can't attack, why are you digging 500 meters out of the trench!"

Xiyun city... Destroyed!

Xu Qing looked sad and had no hope for the third-class counselor.

However, just when he thought about it, Chen Ze, who had been silently looking at the gate of the city, suddenly flashed in his eyes, turned back and waved to Meng Yang waiting on the side.

At this moment, the engineers outside the city advanced another 70 meters, leaving only 200 meters from the Xiyun city gate. This distance is the best attack distance for Meng Yang's five Archer brothers!

Boom!

Boom, boom, boom!

The bowstring on the tower was loud, and five elite archers of Xuanjia who had been instructed to shoot arrows that were lit after dipping in resin. Under the last afterglow of the sunset, the five rockets looked like five meteors breaking the sky and rushed to the engineering brigade.

"Watch!"

After entering this distance, the sword and shield guards of the engineering soldiers were also prepared. When they saw the rocket coming, they roared fiercely. Hundreds of giant shields were held high at the same time, including themselves and the engineering soldiers.

"They only have five archers?"

Guild leader Xu who watched the battle behind the array almost didn't laugh off his big teeth. The five lit arrows were so eye-catching. Didn't he tell them clearly that there were not enough archers on the tower?

However, as soon as the smile on his face bloomed, he heard a bang and his eyes were full of fire.

Fire!

The five Rockets did not attack the enemy outside the city, but just shot at the trench. As soon as the arrow fell, the fire wall rose, and five fire barriers were erected between the poison fog army and the Xiyun city gate!

"This!"

The decadent Xu Qing's face changed and looked at Chen Ze in surprise.

There is a mystery hidden in these trenches. It is thought that Chen Zeming's 500 weak soldiers laid dry sticks and dry firewood in the trench in advance, and then soaked them with fire oil. Only in this way can a rocket ignite the wall of fire to the sky in an instant.

Chen Ze just said that he could not attack at a distance of 500 meters. I think it is for this arrangement. Xu Qing estimated that there might be fire oil in the trenches from 200 meters back.

But on second thought, what's the use of this

No matter how strong the flame is, it will always go out. It's just a little longer. But no matter how long it takes, it won't wait until the reinforcements arrive.

According to Xu Qing's idea, since Chen Ze has this arrangement, he might as well shoot an arrow later and light the fire wall when the engineers come near. At least one or two can be burned.

At present, such a big fire is burning in front of the enemy. When the enemy is on guard, it is even more impossible for people to get caught in the ditch behind!

Where did he know that Chen Ze's trench fire array, in addition to really trying to delay time, the most fundamental purpose is to give a signal!

As night fell, the flames not only burned in the eyes of both the enemy and ourselves, but also were carefully watched by those who had been hidden in the dark for a long time.

"Come with me, childe!"

Guo Zi, who had been impatient for a long time, suddenly shook his body, and an inexplicable powerful force suddenly spread all over his body.

Wu'an generals embedded in Guo Zi's body were triggered by Chen Ze while the wall of fire rose!