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The main structure of the fortress is relatively complex, and Zhu Cihong had done research in this area in his previous life.

What he admired most was the Vauban bastion. The main structures of the Vauban fortress include solid fortress, hollow fortress, breast wall, middle embankment, concave fort, triangular fort, concealed road, cantonment station, and inclined embankment. The bastion radiates in the shape of a star and is covered with a thick layer of soil on the surface to avoid secondary damage from ricochets from enemy artillery.

The solid bastion is a mound of earth with a pedestal attached to it. Artillery is often attached behind the breastwork, which serves as the main fire output of the bastion. The so-called middle embankment refers to the middle part of the fortress, which is similar to the city wall of the Ming Dynasty.

The concave fort was built to prevent enemy artillery from directly bombarding the middle embankment, as did the triangular fort. Both will be lower than the main fort so that it does not affect the artillery fire on the main fort, resulting in crossfire.

Concealment roads and cantonment stations serve as bunkers, and inclined embankments are the outermost fortifications, and a large angle of inclination can maximize the power of crossfire.

In general, the structure of the fortress is completely different from the existing city of the Ming Dynasty. Without a detailed drawing to refer to, it was difficult for the craftsmen to build a fortress that met Zhu's requirements.

Fortunately, Zhu Cihong had done research in this area, and the structure of the fortress was deeply imprinted in his mind, and it was not difficult to draw a diagram of the main structure.

Zhu Cihong didn't want to have any delay, and immediately picked up his pen to outline the outline of the fortress.

I have to admit that Zhu Cihong's sense of spatial structure is not very good, and the structure of the fortress drawn is not too beautiful, but fortunately, the main structure is clearly explained.

Zhu Cihong had already decided to build a group of peripheral forts in northern Shandong first, and these forts did not need to be too large, and each could accommodate two or three hundred people. Their role was to slow down the Manchu Qing's southward march and buy time for Zhu Cihong to train recruits.

Of course, this will cost a lot of money, but it is much cheaper than building a fortified city, and the operation and maintenance costs are much lower, and it is worth the cost.

"Someone, Lu Zhenfei, the secretary of the Ministry of Recruitment, and Gao Hongtu, the secretary of the Ministry of Industry, will meet you!"

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Wuchang, according to the Yamen of the Judges.

Huguang's deputy envoy Du Yinxi kept pacing in the flower hall with his hands behind his back, looking preoccupied.

The day before yesterday, Gonggong Chen, who was sent by the imperial court to deliver the decree, arrived in Wuchang, and a cadre of civil and military officials, including He Tengjiao, the governor of Huguang, and Zuo Liangyu, the general soldier of Huguang, all came to the governor's yamen, set up an incense case and knelt to receive the holy decree.

Plug Yinxi is naturally among them.

Chen Gonggong read out the holy decree in public, and his voice was subdued, showing the mighty sky.

As for the content, it is nothing more than to commend the loyalty of He Tengjiao, Zuo Liangyu and others, and also give Zuo Liangyu a knighthood, from Ningnan Bojin to Ningnan Marquis.

Governor He Tengjiao and Ningnan Hou Zuo Liangyu set up a reception banquet for Chen Gonggong to receive the wind and wash the dust, except for He and Zuo, the rest of the civil and military officials praised Chen Gonggong at the banquet, and they couldn't wait to recognize Eunuch Chen as their godfather.

Although Du Yinxi was disappointed by this, he didn't say much. Now the atmosphere of Daming officialdom is like this, even if he stands up against it, it is useless, and it will arouse the disgust of his colleagues, so he will be excluded.

The wine has passed three rounds, and the dishes have passed five flavors. Eunuch Chen was the first to leave the table on the grounds of drunkenness, and everyone dispersed one after another.

Du Yinxi also got on a sedan chair and returned to his mansion to rest.

Early the next morning, Eunuch Chen went to He Tengjiao and Zuo Liangyu's mansions in a private name.

In this regard, Du Yinxi did not feel the slightest strange. Eunuchs are greedy for money, and this eunuch Chen will naturally be no exception.

According to the practice in officialdom, wherever the official goes, his subordinates should prepare a generous amount of Cheng Yi as a model.

Eunuch Chen is the messenger of the Son of Heaven, so he is naturally Shangguan, and it is understandable that He and Zuo, as representatives of Huguang's civil officials and military generals, each sent a copy of Cheng Yi.

But after that, Eunuch Chen went to the private residences of the Wuchang prefect, Huguangbu political envoys and other dignitaries, and it seemed that he had made a lot of money.

At that time, Gu Yinxi made an evaluation of Eunuch Chen: Greedy ghosts.

It seems that this Chen Gonggong will not give up if he does not ask all the Huguang officials for a copy of Cheng Yi. Plugging Yinxi officialdom has been mixed for half a lifetime, and there are no greedy people, but he is absolutely the only one who is greedy for Eunuch Chen's sake.

Such a greedy person naturally won't forget about Plug Yinxi.

In fact, although Gu Yinxi was the deputy envoy of Huguang at this time, because the main position has been vacant, he is the actual official of the Yamen Hall of the Judge. In addition, with the Wuchang soldiers in charge of the Taoist affairs, he can definitely rank in the top five in Huguang officialdom. Such a big fish, Chen Gonggong naturally will not let it go.

When Gu Yinxi learned that Eunuch Chen had arrived, he ordered the housekeeper to prepare a Cheng Yi, hoping to send the plague god away as soon as possible.

But who knew that Eunuch Chen entered Du Yinxi's study and did not rush to hint at Cheng Yi's matter, but asked Du Yinxi to retreat.

Although Du Yinxi felt very strange, he still did it to Eunuch Chen's face.

Eunuch Chen looked around to make sure that there was no one, so he lowered his voice and ordered Yinxi to take the order.

Du Yinxi was slightly stunned, and immediately understood that the Son of Heaven had a secret decree for him, and hurriedly knelt on the ground to receive the decree.

Eunuch Chen took out a piece of paper folded into a palm-sized piece of paper from his underwear and unfolded it to read.

The content of the secret decree is very brief, with only one sentence: Zuo Zhen is dominant, and Qing can divide and rule.

It was such a simple sentence that made Du Yinxi excited.

The reason why he was excited was not because the Son of Heaven valued him and specially issued a secret decree to him. It's that the Son of Heaven has the ambition to subdue Zuozhen!

As a loyal minister of the Ming Dynasty, Du Yinxi couldn't stand Zuo Liangyu's dominance for a long time. It's a pity that He Tengjiao and Zuo Liangyu had a hot fight, and the two sang and harmonized, and outsiders had no chance to interject at all.

In addition, Zuo Liangyu's army of more than 200,000 people, for the sake of the overall situation, he did not dare to reprimand Zuo Liangyu for causing adverse political influences.

In his opinion, the imperial court is also afraid of Zuo Liangyu, so he will be added to the rank of knight to show his favor.

This is understandable, the court has no soldiers in its hands, so what can it do if it doesn't cooperate with the warlords? It's okay to get by.

But the moment he received the secret decree of the Son of Heaven, he realized that the current saint is a heroic lord with great talent.

The Son of Heaven saw the problem very thoroughly, and his analysis was also to the point.

Zuo Liangyu is domineering because his subordinates have many generals.

But these generals are not all descendants of Zuo Liangyu, and a large part of them have surrendered and been recruited.

Because of the different salaries and treatments, there are many contradictions among the battalions under Zuo Liangyu, and they are by no means monolithic.

And the strategy of the Son of Heaven is to divide and conquer!

As long as Zuo Liangyu's subordinates are divided, his strength will be weakened, and the imperial court will have a chance!

At this moment, Du Yinxi understood why Gonggong Chen went to the mansion of a group of Huguang officials to "ask for Cheng Yi". This is to protect him from blocking Yinxi and avoid arousing Zuo Liangyu and He Tengjiao's suspicion of him. If Gonggong Chen went straight to the Yinxi Mansion, the two old foxes He Tengjiao and Zuo Liangyu would definitely notice it.

The Son of Heaven wanted to collect Zuo Town, and he didn't want to startle the snake, so he had to issue two holy decrees, one bright and one dark.

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