Xilong City.

The city lord Ning Zhenggang is also the supreme commander of the city. At this moment, he had already walked up to the city himself, frowned and stared at the situation outside the city.

Knowing that time is tight, Zheng Yuanyun outside the city is doing whatever he wants. Thousands of catapults were quickly set up on the riverside, followed by a huge roar, and for a moment, the stones were like rain!

The moat under Xilong City seemed to suddenly rained huge stones. According to Zheng Yuanyun's wishes, countless huge stones did not attack the Xilong City Wall, but directly poured into the moat from near to far.

Ning Zhenggang looked at his moat as if it was boiling, and it sparked a lot of splashes in a mad manner, and his fists were gradually clenching.

Zheng Yuanyun's attempt was so clear that he could know the other party's intentions as long as he was not a fool.

This is about to break the river!

But, is it that easy?

Ning Zhenggang looked at the enemy's catapult car that seemed to never stop, and a sneer appeared on the corner of his mouth.

"Come!"

He shouted softly, and his men who had been on standby aside came forward immediately, and then he heard Ning Zhenggang's order: "Take people upstream and release water!"

Although the fact that the catapult of a rock and the flow was somewhat beyond his expectations, Ning Zhenggang felt lucky that he had ordered people to store water upstream of the river in advance.

Although the moat in Xilong City is not turbulent, it is not as calm and simple as it is now. The reason is that Ning Zhenggang had asked someone to build a dam upstream to reduce flow and store water.

Of course, at that time, he did not expect that Zheng Yuanyun would use the method of throwing stones and cutting off the current so rudely and directly. Instead, he thought that if the other party got a ship, he could use this move to open the gate and release water during the process of crossing the river, and then use the sudden surging water to destroy Zheng Yuanyun's offensive.

Unexpectedly, this move has an unexpected effect now.

Zheng Yuanyun's catapult car seemed to be launched forever, but everyone knew that the number of huge rocks in his hand was limited, which means that it would eventually be consumed.

Now it depends on whether his stones are consumed first or the stones in the moat will eventually accumulate to become a path.

Now that the gate is opened and water is released, when the surge in water comes, it can not only increase the water level by a large margin, but also increase Zheng Yuanyun's consumption exponentially, but also disperse a large part of the stones, allowing his early investment to drift.

"Sir, why don't we fight back and distract them?"

The subordinates left after their orders, and the general responsible for the trencher next to him came to ask for instructions.

Ning Zhenggang turned his head, looked at him seriously, and said, "Are you stupid or a traitor?"

"ah?"

The general stared at himself with disbelief, "Sir, I only want to share the worries of the empire, and there is nothing else!"

"Then do you let me fight back?"

Ning Zhenggang sneered: "Do you want to hit them or send them ammunition?"

He pointed at the city, and the general bowed his head in shame when he was stunned.

Zheng Yuanyun is not a fool. When he commands the stone casting chariot troops, he will naturally consider the firepower at the city wall. The opponent is condescending, and the range of the stone casting aircraft will be farther than his. But when it is separated by a moat, the opponent can barely allow the stone casting to attack a little further away from the river.

The catapulted chariot troops commanded by Zheng Yuanyun were stuck at this distance, and he did not need to attack the city wall, he just needed to pour the stones into the river, and of course it would be very far away.

The counterattack started from the top of the city, which was not only for giving stones to the other party, Ning Zhenggang had no idea that there was any effect.

He didn't really think that his generals were traitors, he was just disappointed with the latter's stupid idea.

At the same time, Zheng Yuanyun's side.

"grown ups!"

Without Xiao Du, the scout deputy general became the current intelligence chief. He quickly walked to Zheng Yuanyun who was supervising the battle in front and sued him and reported: "As expected, they had accumulated water upstream!"

"Oh!"

Zheng Yuanyun sneered, showing an expression that was indeed like this.

When he first came, he felt that the water level was a little low. Now it is not a dry season. The water level in the river should not be that low. Zheng Yuanyun still knows this common sense.

So he ordered people to throw stones on one side, and sent people to the upper reaches of the river to investigate. Sure enough, according to the news brought by the deputy general, there was information that the water flow in the upstream was cut off.

"We can't let them open the gate and release the water!"

Zheng Yuanyun turned his eyes and stared at his vanguard general.

The latter understood and bowed to the order and then made a big move. One hundred thousand cavalry quickly came out and followed the vanguard to rush to the upstream area.

Zheng Yuanyun was strong at this time, and he ordered a 100,000 troops to be dispatched at random, which made him feel proud.

With such elite soldiers and generals, why worry about not breaking the enemy's city?

In addition, at the same time, Chen Ze was also giving instructions.

"Cut off the gate rope directly!"

He said coldly.

The object of this order is Zhang Hualin!

Zhang Hualin, who had been monitoring Zheng Yuanyun in the dark, heard that the other party was preparing to pave the way for the army to attack Xilong City by throwing stones and cutting off the current, Chen Ze ordered Zhang Hualin to leave temporarily.

Will Zheng Yuanyun's army take action for a while, and Zheng Yuanyun, who has arranged everything properly, will no longer have important information for investigation. Therefore, Chen Ze temporarily asked Zhang Hualin to leave Zheng Yuanyun's side to do something more important.

This incident happened to both sides, about the issue of upstream water storage.

Chen Ze could naturally think of what Zheng Yuanyun could think of. After he saw the moat through Zhang Hualin's eyes, the problem of water level too low also appeared in his mind.

The difference is that Zheng Yuanyun asked someone to go upstream to explore, but Chen Ze directly asked Zhang Hualin to set out first and go to the upper reaches of the river more than 20 miles away from Xilong City. Sure enough, he saw the temporary building's flood control embankment.

Zheng Yuanyun's scout still needs to pass the situation here back to the main business for the superior to know. Chen Ze did not have this process, he clearly saw the embankment with his own eyes.

So Chen Ze's order was issued to Zhang Hualin as early as when Zheng Yuanyun's scout was still on his way back.

Cut off the gate rope, which is to first complete the plan and release the large amount of river water reserved in the upstream.

This dam was temporarily built and not necessarily very solid. The principle is to build a huge wooden solid fence upstream to stop the flow of river water. There is a steel cable on both sides of the fence to fix the upright fence, so that the water flow must pass through the fence before it can continue down.
Chapter completed!