It’s not that there is nothing to see in the right martial guard’s garrison, but Cheng Yaojin doesn’t want others to steal the right martial guard here.

Opportunity to stay in.

If the generals of other guards knew Yin Qingfeng's designs, they would not have to ask the prince for mercy, and they would kill him directly.

He asked for blessings in front of him. Of course, he also knew that after the college started next year, his little abacus would be

It can't ring, but it's one more day.

Shortly after passing the Right Wu Guard garrison, Cheng Yaojin gave the explanation to Yin Qingfeng.

Everyone's eyes were attracted by the buildings ahead, and no one paid attention to the changes in their positions.

The building in front is not so wonderful, but too simple - both sides of the wide city gate are actually extended outwards

A very long and wide section of high walls.

These two walls are the same height as the city wall; facing the top of this side of the cement road, there is a window every half meter.

Wengcheng, also known as Yuecheng and Quchi, is an attachment in ancient my country that is attached to the city gate and connected to the city wall.

The building is a semicircular city, and a few are square or rectangular. When the enemy attacks the city, it is like the main city gate and

When the gate of the urn is closed, the defenders can form a "catch turtles in the urn" against the enemy.

During the Western Han Dynasty, the curved wall outside the gate of the Guanzhuowu, the marquis of the Hou of Yanjiaqu, Gansu, built by the Xiongnu, had similar urns.

The city's architecture, but the real prosperity of the urn city began in the Five Dynasties and the Northern Song Dynasty.

The place where Pang Qingyun massacred the Taiping Army surrendered by Zhao Erhu was persuaded to surrender was in Chinese history.

The largest urn city was carried out in the Tongji Gate of Nanjing.

The reason why the wall city of each city is built inside the city gate is the basis of Taoist thought - "state benefit"

A tool will not be shown to others."

But Yin Qingfeng insisted on doing the opposite.

Although the urn city is conducive to defending the city, it is too passive. If the defenders want to use the urn city, they either guard it.

The guards are insufficient and they lure the enemy into the city to carry out effective killing. Either the city gate can no longer be defended, so they can only rely on

Wengcheng is here to make the final resistance.

When Yin Qingfeng was designing the urn city, he moved it outside the city gate and turned the semicircle into two straight walls. And on the straight wall

The two ends facing south are mentioned: The first couplet: Please go elsewhere after promotion. The second couplet: Do not enter this door if you are greedy and fearful of death.

Although Li Shimin did not understand the function of these two straight walls, he wrote these two sentences, but he did not expect Yin

Qingfeng will leave the words here.

It was only after Li Shimin became the emperor that he had time to practice the Feibai style that was praised by others. If he really used the words

To discuss the physical skills, it is not his turn to write these two inscriptions at the moment. But who told me that the identity is there?

Who would Yin Qingfeng flatter him if he didn’t flatter him?

The big guys will know who the word comes from after reading it, so they focused their discussion on the content of the word.

After the discussion and praise were over, it was Yin Qingfeng's turn to explain the purpose of these two walls.

"The tops of these two walls are also a corridor. After the crossbowman enters the city wall, he can shoot down from the window.

Don't worry about being shot and killed by the enemy."

Although everyone vaguely guessed the purpose of these two walls, they dared to say this from Yin Qingfeng's mouth.

Be sure you guessed right.

"Oh my God~~~ Who dares to attack the city from now on?" "Who dares to attack the city from now on even though he knows that one person dies when he goes in, who dares to go through the city gate?

Attack?" "If you build such a wall every few dozen meters outside the city?" "Hiss~~~" "There is no place to hide

Ah~~~” “Anyway, when a certain family faces such a city, the best result is to win in the field, so don’t think about siege.”

Cheng Yaojin asked with a smile: "If you come to attack this city, what's the solution?"

Someone muttered, "Is there any way besides siege?"

Someone opposed: "What's the use of siege? You said, how many soldiers do you want to leave to siege? If the rest of the soldiers are

What should we do if the situation Ma encounters in the next city? I said, withdraw the troops! There is no way to withdraw the troops except withdrawing the troops!"

The person who was still thinking hard just now immediately gave up thinking.

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A battle that truly relies on siege to win will be the final result of both sides.

The siege side does not seem to have to consume soldiers on the city, but how to solve the problem of the food and grass consumed during the siege?

All of them come from afar, and once the food and grass are not maintained, the consequences will be disastrous.

Faced with such a city, you can only use long-range siege equipment - a catapult cart smashed and smashed down.

Yi, where are the ten walls? How many stones can you find to smash them?

The more the bosses think about it, the more they feel sad, and the more they think about it, the more they admire Yin Qingfeng.

There are not many famous generals in history who are famous for defending the city, but those who make their reputation still rely on those bloody struggles to make them famous.

Soldiers in the battle. Who has ever built a few high walls outside the city like Yin Qingfeng, so that the enemy can retreat?

He guarded not only a city, but everything!

If all cities in the world are renovated in this way, those who want to rebel should have their hearts done.

Even good soldiers cannot defeat them, can they still count on those people who are being held captive?

With such reconstruction, what moat will be needed in the future city? With such reconstruction, the future city

Just train crossbow soldiers, and swords and shield soldiers are useless.

The big guys can figure it out, and Li Shimin can naturally figure it out, "Yin Qingfeng, the Marquis of Huaiyang!"

Yin Qingfeng immediately responded: "I am here!"

Li Shimin said seriously: "You immediately select craftsmen to send to the Ministry of Works!"

"Here!"

Li Shimin shouted again: "Yang Gongren, Minister of Works!"

Yang Gongren stepped forward, "I'm here!"

Li Shimin shouted to him: "You go back and select officials now, and let them lead the workers sent by the Marquis of Huaiyang tomorrow.

When the craftsmen go to the frontier cities, they must complete the construction of each city before the New Year!”

Yang Gongren bowed and replied, "My minister Yang Gongren accepts the order!"

He bowed to the others, turned around and walked back quickly.

Li Shimin shouted again: "Qin Shubao, Liu Hongji, and Yuchi Gongben's prince ordered you to go back and draw each other now.

The guards will accompany you tomorrow!”

Wu Xun, who was named, walked out of the crowd, "I received the order!" and walked back together.

Although the Turks will not attack the border every time they attack the border, if those border cities are reconstructed like this, if they encounter another battle again

For the matter, just leave the crossbowmen to defend the city, and the cavalry and infantry can leave the city to fight.

Since Yin Qingfeng has helped the border army find another way and weapon to defend the city, it must be used immediately.

You should know that since the founding of the Tang Dynasty, the Turks have not stopped invading the borders of the Tang Dynasty. One day earlier, one earlier, one earlier, one more time.

The sky reduces the casualties of soldiers.

Whether it is organization officials or transferring crossbowmen, it cannot be completed in a short time, so Yang Gongren and

Several generals of the Guards immediately went to execute. But Yin Qingfeng still had to stay and explain, and he could not leave for the time being.

Those who did not want to flatter others now don't care about these things, and they all advised Li Shimin,

Li Shimin rewarded Yin Qingfeng.

Cheng Yaojin was promoted to the Shangzhu Kingdom for his merits in training. Yin Qingfeng's contributions were much greater than his. If he didn't join him,

When commending rewards, they will be given a reputation of being jealous of talented people and unclear in their opinion, while Li Shimin will be given a reputation of

The bad reputation of "no reward for merits".

Yin Qingfeng's heart was thrilled. Just as he was about to speak, Li Shimin waved his hand, "I had ordered the Marquis of Huaiyang to build it."

Royal Military Academy, now we haven’t even entered the gate of the academy yet, don’t worry.”

The big guys are just talking about officialdom. Who doesn’t know that today’s highlight has not yet been staged? But, in the highlight

I have received so many surprises before it even started, what else is waiting for them next?

"Hahaha, let's see what wonderful thoughts do Marquis Huaiyang have~~~"
To be continued...