"Lord Yu, we can attack Cao Jun by digging tunnels."

Yuan Xi told his proposal.

"That's a brilliant plan!"

His eyes lit up, and he hurriedly smiled,

"Okay, I'll leave this matter to Childe in charge!"

Yuan Xi scolded secretly in his heart, but he still smiled on the surface and took the order.

So the Wuhuan people stopped attacking the city and began to camp outside the city.

According to the instructions of Badun Shan Yu, Yuan Xi found a suitable location and surrounded it with a tent.

After determining the direction, he directed the Wuhuan people to excavate.

Fortunately, the soil of the grassland is relatively soft, and there are a large number of Wuhuan people as coolies, and as soon as the sky darkens, the tunnel has begun to take shape.

After dinner, Bun Dun Shan Yu took Su Muyan and Wu Yan and walked over leisurely.

"Yuan Gongzi, how is the situation?"

"Returning to the Order, the progress is going extremely well."

Yuan Xi smiled,

"Three to five days if it's fast, seven days if it's slow, and we'll be able to storm the city."

"Great!"

He was overjoyed, looked at Liucheng not far away, and hated the authentic,

"When I enter the city, I must cut off Yang Ling's head as a wine glass!"

……

Liuchengzhong.

As night fell, after confirming that the Wuhuan people would not attack the city overnight, the soldiers of the Cao army were also relieved.

Yang Ling and a group of generals gathered in the lobby, eating and discussing military affairs.

"My subordinates have just counted the grain and grass in the army, and it is at least enough for half a year."

Gao Rou reported.

Although when he set off from Qianping County, Cao Jun drove lightly on the road and did not carry too much grain and grass.

But Liucheng is the royal court of the Wuhuan people, and there is a large amount of grain and grass stored in it, which is enough for Cao Jun.

"That'll do."

Yang Ling nodded.

"Strategist, the Wuhuan people have suffered so much humiliation today, but they have uncharacteristically given up attacking the city, I am afraid that there are other conspiracies, we still have to be careful."

Tian Yu said on the side.

"Harm, Mr. Zitai, don't worry, the Wuhuan people can't even build siege equipment, how can they attack the city?"

Gan Ning smiled disapprehantly.

"General Xingba, you can't say that."

Tian Yu said seriously,

"They can't make siege equipment, but they can dig tunnels!"

His words were a wake-up call to Yang Ling.

As Tian Yu said, it is very likely that the Wuhuan people will attack the city by digging tunnels!

Thinking of this, Yang Ling hurriedly said,

"What Mr. Zitai said is very true. Zhou Cang! ”

"The last general!"

Zhou Cang dropped his job and stood up.

"You immediately lead people to bury a row of urns along the city wall, and order people to listen day and night, don't let the Wuhuan people dig a tunnel to come in."

Yang Ling commanded.

"Whoa!"

Seeing Zhou Cang leave quickly, Yang Ling breathed a sigh of relief.

Early the next morning, Yang Ling took Zhao Yun, Tian Yu and others to climb the city wall of Liucheng.

He looked around, and when he landed in the Wuhuan military camp, his brows furrowed slightly.

"Look at those tents, isn't that a little weird?"

Following the direction he pointed, the crowd looked over.

Sure enough, as Yang Ling said, those tents were strange.

Not to mention the military camp far away from the Wuhuan people, the layout is also quite unreasonable.

Several tents formed a circle, blocking the situation inside, and there were Wuhuan people constantly going in and out.

Although it was not clear what they were holding in their hands, they could tell that they were carrying something.

"In this way, the Wuhuan people are indeed digging tunnels!"

Tian Yu said in a deep voice.

"In that case, then we should be ready!"

A sneer appeared at the corner of Yang Ling's mouth.

……

After three days and three nights of continuous excavation, the tunnel has become extremely deep.

After Yuan Xi measured it repeatedly, he finally determined that the other end of the tunnel was already underground in the city.

He came to the tent of Tun Shan Yu in high spirits,

"Lord Yu, the tunnel is almost ready, and it can be put into use tonight!"

"Childe really didn't disappoint me, if you capture Liucheng, you should be the first to take credit!"

Hearing this, Ton Shan Yu was also overjoyed, and his eyes looking at Yuan Xi were full of appreciation.

Although he looked down on Yuan Xi, he also had to admit that the Han people were much smarter than the Wuhuan people.

When the sky darkened, the royal tent guards in the Wuhuan clan also came to the entrance of the tunnel.

The king's tent guards are all elite warriors selected from various tribes, and it is not too much to describe them as one enemy and ten.

They are all Shan Yu's own soldiers, only about a thousand people, and they never go out easily.

It can be seen that in order to win Liucheng, Bandun Shan Yu also made a bloody investment!

"As long as you win the Han dog tonight, you will all be rewarded!"

He said in a deep voice.

"Thank you, Lord Shan Yu!"

A group of royal tent guards pressed their chests and shouted in a low voice.

"Alright, let's go!"

With a wave of his hand.

In order not to attract the attention of the Cao army in the city, and in order to be able to send more troops at one time, Yuan Xi ordered people to dig a total of three tunnels not far away.

The king's tent guards jumped into the tunnel one after another, and followed the narrow and stuffy tunnel all the way to the end.

When it was ready, the Wuhuan man in charge of digging continued to wave his tools!

According to the original plan, they were going to dig a dozen steps further and then dig into the ground overhead.

However, to the surprise of the Wuhuan people, they had just dug a few steps away when they felt empty in front of them.

As a ray of light entered the crypt, so did the fresh air.

What's going on?

The Wuhuan people in front looked at each other.

They swung their tools again and dug a few more times.

With a "bang", the earthen wall in front of them collapsed, and the situation outside was also displayed in front of them.

It turned out that Cao Jun actually dug a huge pit along the side of the city wall.

At this time, the Wuhuan people in the three tunnels were all exposed to the pit.

And on the edge of the pit, there are dense Cao soldiers and soldiers, who are eyeing each other!

"Shoot the arrows!"

Gan Ning gave an order.

The soldiers of Cao deducted the Lingyue crossbow in their hands, and countless arrows shot towards the Wuhuan people like locusts!

For a while, screams rang out!

But after all, the royal tent guards are the elite of the elite.

Instead of flinching, they rushed out with their weapons held high and screaming!

It's a pity that their attack is as ridiculous as a moth to a fire!

Gao Shun's trapping camp is already on the verge of the trap, ready for battle!

In the face of the royal tent guards who rushed over, they held a sword in one hand and a shield in the other, and slaughtered the enemy by virtue of their geographical advantages!

No Wuhuan can break through the encirclement of the trapped camp!

The two sides fought less than a cup of tea, and the royal tent guards surrounded by Cao's army suffered heavy casualties!

The rest of the companions saw that the situation was not good, and staggered back into the tunnel.