Lao Xu guessed that there was some truth.

Yan Ming discussed with him that he was indeed building something. However, this thing is not a city, it is much easier than building a city.

That is to build the turret.

However, this turret was designed by Yan Ming, which is different from the turret of the devil on TV, but the same as the turret used by Ma Zhanshan, who started the Jiangqiao Anti-Japanese War.

It was a kind of sealed turret. That is, after the fighters entered, they sealed the outside doors with cement. The people and the pills were locked inside, and there was no way out. You can only fight to the death. Never give in.

Yan Ming asked Lao Xu to build a turret similar to this. However, he will not let the Han soldiers inside have no way out, so he needs Lao Xu's engineering team to cooperate more.

The most important thing is to dig the tunnel first. Tunnels are dug out of the city, and all the turrets are connected to the tunnels in the city. In other words, the people in the city were able to extend the shooting range. It's like a spoken-out network.

Yan Ming said, Lao Xu remembered.

The two of them unconsciously studied until dark, and then until dawn.

When Chengxin took the lamp for the two, collected the lamp, and delivered breakfast, Yan Ming found that he had talked to Lao Xu for a night.

On the paper in front of them, a design drawing of an underground passage has now appeared.

"A main road leads to the outside of the city, and then at least a few dozen pillboxes go out." Yan Ming pressed his hand on the drawing and said cautiously: "But there are some things that can't be known to outsiders." Therefore, it is best to choose the construction personnel who are brought from their hometown and know the roots. ”

Lao Xu nodded, and suddenly said: "Could it be that he learned from Qin Shi Huang and buried us all in the tomb after building it?" ”

Yan Ming pointed at Lao Xu and said with a smile: "Lao Xu, your brain hole is too big." ”

Lao Xu didn't know what the brain hole meant, so he smiled with a confused face and said, "No, it's fine, if it's true, even if I sacrifice my life for the big man." ”

"Don't be so tragic, this marquis's heart is not so dark." Yan Ming slapped Lao Xu with his hand and said with a smile.

Lao Xu also smiled and asked, "When will the construction be?" ”

"Of course, the sooner the better. Damn, the Huns may come when. Yan Ming said.

Lao Xu had the order to immediately prepare for this. The construction in Cloudsdale has been temporarily stalled. This is the case with the border towns, where everything gives way to the military in times of war.

Building in the cloud is not so simple in the first place. Yan Ming is ready to fight a protracted battle.

Even in the north, the weather is getting warmer. In the past half a month, Lao Xu's tunnel network has been almost built.

The scouts sent out by Wei Qing kept coming with news that King Zuo Xian was gathering a large army and preparing to conquer Cloud City.

Yan Ming and Wei Qing's tossing in Cloud City had already caused the Huns to be confused.

At this time, it was the season of late spring and early summer, and the Huns invaded the Han Dynasty in the autumn when the horses were fat. At this time, it was rare to start a war with the Han Dynasty.

According to Wei Qing's scout's prediction, King Zuo Xian was really angry this time. Tens of thousands of men and horses were gathered, and this kind of formation was similar to the previous large-scale wars of the Huns.

Under the prediction of the scouts, Yan Ming pushed the time forward a little and asked Lao Xu to build the bunker as soon as possible.

Naturally, the bunker is centered on the Jingguan and spreads out in all directions.

The tunnels of each bunker were equipped with something to divert water, and once the bunker was destroyed and the soldiers died, water would pour into the tunnel, making it impossible for the Huns to enter Cloudsdale directly through the tunnel.

I have to say that Lao Xu's construction speed, after the training of Maolingyi and Yunzhong City, has gone up a big step.

Pillboxes, like mushrooms after a rain, have sprung up around the Jingguan outside the city in the clouds, turning the entire open area outside the city of clouds into a place within the reach of the Han soldiers.

In the bunker, Yan Ming designed the shooting port to be plugged with an iron plate. A pillbox is not just a firing port either.

During this period of time, Da Lao Chen also built several barrels.

The flintlock pistol assembled by Yan Ming has reached ten shots.

These flintlock musketeers were all sent by Yan Ming to participate in training in the bunkers around Jingguan.

All they had to do was to accurately kill the Huns in the bunker who tried to destroy the Jingguan.

Originally, Yan Ming wanted to improve the Condor crossbow and sent it to the bunker as a powerful shooting weapon. But the Condor crossbow is indeed too big, and it is inconvenient to put it in the bunker. I had to let a bunker enter a few practical military crossbows.

In this way, around Jingguan, they were armed to the teeth by Yan Ming.

And that's not even counting the trebuchets, firemines, and Condor crossbows at the head of the city.

Liu Che also provided a lot of support to Yan Ming. The most important thing is to send a large number of blacksmiths for Da Lao Chen to train.

The little emperor experienced the power and benefits of the flintlock pistol and was determined to build a great elite of men who would use the flintlock pistol exclusively.

The arrival of a large number of blacksmiths increased the speed of ironsmithing.

At the same time, Cloud City also ushered in 5,000 new troops led by Li Cai.

The reason why it is called the new army is because these Han soldiers are not only equipped with swallow swords, but also military crossbows, and the two standard crossbow boxes for each person are also essential.

At the same time, Cheng Buzhi and Li Guang also sent 10,000 new troops each.

In this way, the number of border troops of the Han Dynasty reached more than 30,000 people. And most of them are the new army. Equipped with military crossbows.

The construction of the tunnels and bunkers was roughly completed, and Lao Xu led people to start building the buildings inside Cloud City again.

At this time, King Zuo Xian of the Xiongnu was finally prepared, and his army of 80,000 was called 150,000, and he drove mightily in the direction of Yunzhong City.

This time, the slogan of the Huns was to kill all the border people in the border areas of the Han Dynasty and pay tribute to the dead eagles of the Huns. They want to give the Yunzhong County of the Han Dynasty a three-light policy.

This large-scale attack has already caused a shock in the Han court. 80,000 Huns are already worthy of the Han army's encirclement.

Liu Che asked Yan Ming's thoughts urgently.

Yan Ming disagreed, he wanted to build Cloud City into a meat grinder for the Huns, and now he has not started the meat grinder mode.

"Jingguan is the focus, and the 80,000 troops of the Huns will be buried because of Jingguan!" Yan Ming replied to Liu Che firmly.

Nowadays, it is impossible to suddenly mobilize a large number of troops to confront the Huns.

Liu Che had no choice but to accept Yan Ming's suggestion. But he didn't do nothing, but sent two armies, all the way to the west, to deter King Hutu and King Hun Evil. There is also a large army to the south to deter the southern Baiyue zone.

Liu Che is a strategist, even if he can't help Yan Ming increase his troops, he can use the movement of the Han soldiers to contain the enemies around Yan Ming and create a better situation for Cloud City.

(Thank you to the 'social worker' brother for their generous support, and we will update it later in the evening!) ）