Outside Xilong city.

"My Lord, it seems that they are ready."

The general in the vanguard position was observing the deployment of Xilong city. When he saw Zheng Yuanyun personally supervising the war on the front line, he quickly bowed down and saluted.

Zheng Yuanyun said, not surprised by the response of Xilong city.

Although his army shouted the slogan of surrender without killing at the first time when they came to the city, it was obvious that the other party was not moved.

He looked up and looked at the city head of Xilong from a distance. He couldn't see it clearly from too far away, but Zheng Yuanyun believed that the garrison stationed at the city head would be scared to soften their hands and feet when they saw such a huge enemy attack.

But after all, they still didn't surrender and wanted to make senseless resistance.

Zheng Yuanyun knows why.

When he knew that Ouyang's strict leader came out of Dongping City, but buketan City attacked him, he had been aware of the other party's plan.

But this is mingmou. Even if he is aware of it, he can only attack one city after another as the other party wants. There is no other way.

So this is why Zheng Yuanyun resolutely sent Xiao Du back to find reinforcements.

Xilong city is surrounded by water on three sides, and only the gate in the middle can pass through. But before Zheng Yuanyun arrived, the commander of Xilong City, who first received Ouyang's strict instructions, had the moat bridge cut off, all ships within a radius of 20 or 30 miles were burned, and even a dense forest not far from Xilong city was destroyed.

Not only did he not leave Zheng Yuanyun's boat, but even the wood was not ready to be left for him. It was clear that Zheng Yuanyun would not cross the river.

"So you want to stop me?"

Zheng Yuanyun looked at all the arrangements made in Xilong City, and there was only a sneer on his face.

Before coming here, he had studied the topography of Xilong city. He knew that there was water on three sides, and the river was both wide and long. If he didn't want to cross the river and go around the long way

He would probably go around to the border close to Fengqi province until the river began to narrow and there was a way for the army to cross the river without relying on ships.

If that's the case, the cauliflower will be cold.

Zheng Yuanyun didn't have to say that he couldn't attack the city, so he just stayed in Ketan city and waited for reinforcements.

But if he really wants to do that, when Ouyang's strict implementation is deployed and the reinforcements from Zhu Yan's empire arrive, even if he really moves in, he's afraid he can't succeed.

So, we still have to attack!

As for how to attack, he had a draft on his way. At this time, when he saw that the situation was not what he expected, he was not anxious or angry. He only sneered and ordered: "send orders and let the catapult prepare!"

"Throw a stone?"

The vanguard general's name was he Yu. He was stunned when he heard the speech and couldn't believe: "Sir, the distance from the moat..."

Only through visual inspection, we can know that the width of the moat has exceeded 200 steps, that is, even if they push the catapult directly to the river and launch it, the huge falling stones can't attack the wall.

Even if you attack, what's the use?

The bridge was destroyed, and there was no ship around. Even if the wall was blasted out and there were no troops to fill it, what's the use?

Lord Zheng should understand this truth better than himself, so what is his intention?

He Yu didn't understand. Although he immediately mobilized the catapult troops behind the camp according to Zheng Yuanyun's instructions, this doubt was clearly written on his face.

"Who said I was going to blast the wall?"

Zheng Yuanyun glanced at him and said coldly, "don't they think we can't cross the river without ships?"

"Then let them have a good look at how our Qingyang Empire builds roads!"

"Build... Build roads?"

He Yu opened his mouth and blinked twice. Finally, he understood Zheng Yuanyun's meaning.

The purpose of the stone catapult troops is not to attack Xilong City, but to fill the turbulent River under the city wall with a large number of stones, so as to fill a way out!

He Yu didn't even think about this idea, but Zheng Yuanyun seemed to have a plan for it. He didn't even hesitate at all, so he already had a countermeasure.

Worthy of Lord Zheng!

He Yu thought with great admiration.

Zheng Yuanyun's method looks stupid, but it's not.

In order to attack Nantes Province, Zheng Yuanyun had made all kinds of preparations when he was in bo'an City, including a large number of logistics logistics troops and a large number of stone catapult troops.

The total number of catapults they brought to the front line has reached an exaggerated 1000. This round of salvo will hit more than 1000 huge catapults.

When preparing outside Ketan City, Zheng Yuanyun had ordered people to focus on collecting suitable stones, even a large amount of gravel, wrapped in animal fur and stored a large amount of ammunition.

According to the amount of ammunition they transported

He Yu roughly estimated that it would be enough to take these stones to build another wall, not to mention filling the river channel.

Those guys dare to be so stubborn. We have to do it ourselves. That's good

He Yu smiled grimly at the corners of his mouth. When the city is broken, I will tell you to have a good look. What will be the end of tenacious resistance!

"I see..."

In Ketan City, through Zhang Hualin risking his life to get close to what he heard, Chen Ze nodded clearly.

"Isn't this just cutting off the stream?"

He shook his head and smiled, "sure enough, it's good to have many people!"

Xilong city has done its share of urban defense and thought of making full use of the defense method of the moat. Unfortunately, Zheng Yuanyun is not willing to give them this opportunity. He has long planned to use the ammunition of the catapult to fill the moat.

This method is cumbersome, but it is very effective.

After all, although the moat is very wide, the river is not turbulent. Zheng Yuanyun threw huge stones with heavy weight. As long as there is enough quantity, it can really fill a path to each other's city gate.

But that's good. At least the goal is achieved.

Building roads?

It's simple to say, but the cost of time is inevitable. More or less, it has achieved the goal of Chen Ze and Ouyang's strict reservation, delayed Zheng Yuanyun and prevented him from easily taking down Xilong city.

Moreover, the traffic capacity of the temporarily built road is limited after all. It is impossible for Zheng Yuanyun's soldiers to charge bravely like a smooth river. The number of soldiers who can attack Xilong city in unit time will be sharply reduced.

As a result, Zheng Yuanyun had to lose more soldiers to capture Xilong city. No matter how much more he would lose, it would also be a loss of troops beneficial to Zhu Yan empire.

The opportunity to win is to use this bit by bit accumulation in exchange, not afraid of less, just afraid of No.