When Yang Ren led the men and horses to the place that Yan Pu told him, he found that there was silence here at this time, and there was no scene like the military advisor had expected.

At that time, Yang Ren's heart that had been holding on to it was put down, and this can be said to be their last hope for a turnaround.

Once this place is occupied by Liu Zhang's army in advance, then they really have no hope.

The place that Yang Ren led people to was a river north of Baishui Pass.

And here is the bend of the whole river, and the water that continues to gush from the upper reaches is very magnificent.

This, combined with the heavy rains of the past few days, has made the water level of the river much higher than usual.

As long as they do a little trick here, they can turn Baishuiguan, which is located below, into an ocean.

This was the plan that Yan Pu had in mind, using the water of this river to launch an attack on the enemy forces outside Baishui Pass.

As long as the flood water rushes down the terrain, Pang Xi and his 150,000 people will all have to feed the fish.

Zhang Lu's soldiers did not have such worries, first of all, they had the solid support of Baishui Pass, even if the flood came to close the wall, they could block it.

Even if the wall can't stop the surging flood, they can occupy the wall, roofs and other favorable terrain, so that at least their soldiers will not be directly swept away by the flood!

Compared to them, Pang Xijun, who was in the open field, looked extremely pitiful, and as long as the flood passed, those who were exposed in the wilderness would become the target of the flood.

In half an hour at most, 150,000 people will be buried in the belly of the fish, and even Pang Xi and other generals in the army will not have much ability to escape in the face of the raging flood!

The reason why Yan Pu was reluctant to use such a trick before was mainly because it was really hurtful to the heavens and peace, and the lives of 150,000 people were not something he could afford.

However, due to Ding Wen's arbitrary decision-making, he changed the words he wanted to convey to Pang Xi, which led to Yan Pu's misjudgment.

That's why Yan Pu made up his mind and prepared to wipe out Pang Xijun!

No one thought that because of a small person, the outcome of this battle would be completely changed, and then the overall trend of the world would be changed.

Of course, these are all things that happened later, and it is not yet that time, Yang Ren at this time has already led people to start arranging according to Yan Pu's instructions.

They started by piling sandbags in the lower reaches of the river to raise the water level upstream again and to build a temporary dam on the other side of the river.

As long as the levee is successfully built, Yang Ren only needs to order someone to destroy the levee when needed, and then the flood will rush straight down to the wild horses that have escaped as they wish.

Just when Yang Ren was leading his subordinates to do a lot of work, Pang Xi led his troops and started the fourth attack on Baishui Pass today.

Pang Xi and the others had already attacked three times in the morning, plus the previous daily attacks, the city wall of Baishui Pass had already become scarred at this time.

If it weren't for the fact that this Xiongguan was the first gate to defend Yizhou, and Zhang Lu had ordered it to be renovated and reinforced several times, the wall of Baishui Pass would have collapsed long ago!

However, even if the high walls of Baishui Pass City are solid, it cannot withstand the repeated attacks of Pang Xi's 150,000 troops.

As long as the intensity of such an attack continues to be maintained, the walls of Baishui Pass will definitely collapse in three days at most.

Pang Xi took a fancy to this, so he kept sending people to attack Baishui Pass, and each attack was stronger than the last one.

If it weren't for the fact that Pang Xi had enough soldiers and horses, he would not have the capital to carry out such tactics.

But even if every wave had to be rotated, Pang Xi's soldiers were also tired.

Not only them, but even the soldiers Zhang Lu who were in a defensive posture were extremely tired, but compared to the enemy troops outside the city, their mental outlook was much better!

Moreover, the soldiers under Zhang Lu's command were all disciples of the Five Dou Mi Sect he created.

Inspired by the double encouragement of defending the family and the country, Zhang Lu's soldiers were very energetic despite their fatigue.

When they saw the enemy troops outside the city start attacking again, they didn't need the generals above the city walls to give orders, and they had already entered the positions they should have entered.

For a while, a series of tooth-sore "creaks" sounded quickly, and it was the soldiers of Zhang Lujun on the city wall who had drawn their bows and arrows.

The rain of arrows they shoot will form the first line of defense against death.

Slaughter the Yizhou soldiers who dare to rush into this line of defense, and when the other party escapes from this line of death, at least three of the ten pavilions will be removed!

However, today, the Yizhou army seems to have changed a little, and there are not only ordinary ladders, rushing vehicles and other siege equipment in their ranks.

Zhang Lu's subordinates actually saw dozens of large chariots, which were already covered with Yizhou's archers last time, and were being pushed slowly forward by Yizhou's foot soldiers.

When he saw these cocoon cars, Zhang Lu felt a chill on the back of his neck.

Because he knew that once his archers were suppressed, the pressure on the defenders would increase exponentially.

At this time, Zhang Lu no longer wanted to engage in this kind of meaningless confrontation with the other party, with Yan Pu's strategy, if he continued to consume it, wouldn't he become a fool!

Therefore, the suppression of the archers is extremely important, as long as these cocoons are not allowed to play a role, then his soldiers can at least reduce the casualties by more than 20%.

Moreover, the production process of the cocoon is very complicated, even if they use all the strength of Pang Xijun outside the city, they have only produced the dozens of cars in front of them during this time.

As long as he can send someone to destroy all these cocoons, then Pang Xi will definitely not be able to make a second batch, and the flood flowing down the mountain will not give them this opportunity!

Thinking of this, Zhang Lu immediately made a decision, and he ordered someone to call Zhang Wei, who was commanding the defense on the other side, his most trusted brother.

He wanted his own brother to lead the most elite soldiers under his command to rush out and destroy those cocoons as much as possible when the opponent's foothold was not stable.

In this way, they could relieve the pressure of defending the city, and secondly, they could increase the prestige of their brother, and he was of course willing to give such a good thing as killing two birds with one stone.

When Zhang Wei heard that his brother had let him go out of the city to destroy the enemy's chariot, Zhang Wei's heart began to surge, he was an extreme militant.

During this period of time, the daily non-stop defense has already made Zhang Wei feel extremely bored.

It's a pity that when the enemy is strong and I am weak, his eldest brother will never allow him to lead troops out of the city to attack the other party.

In the past few days, he even has the intention of disobeying the order and attacking without authorization.

Just when he was about to put it into action, he didn't expect his eldest brother to take the initiative to let him fight, and for a while, Zhang Wei's belligerent blood began to boil!