Although Li Ke couldn't understand Li Shimin's profound meaning, it did not prevent Li Ke from writing a letter to Li Chengqian in the original form.

Li Chengqian, who was far away in the Kongduigou camp, had no idea that Li Shimin had regarded him as an important force in the Tang Dynasty court and wanted to join forces with him to deal with ministers who opposed his eastern expedition.

Li Chengqian had just unified the hearts of the people inside. The Xue Yantuo surrendered in the ice city, who was trapped in the ice city, had to eat or drink for two days and two nights, had all been frozen to death.

Li Chengqian ordered people to organize the bodies of Xue Yantuo's surrendered soldiers, and prepared to let the leaders of all tribes who came to celebrate the great victory of the Tang Dynasty come here to visit.

At the same time, he also received good news. He sent people to look for mines to find gold, silver, copper ore, iron ore, etc. These precious metals played a very important role in the subsequent reform of Li Chengqian's Tang Dynasty.

Li Chengqian knew that this area was rich in minerals, but he didn't expect that they could find it so completely, because the Tang Dynasty's rule over here is still very weak, and Li Chengqian was only prepared to mine gold, silver, and copper. As for the iron ore, he ordered a blockade and wait until the Tang Dynasty ruled here like the mainland.

While doing various governance and production plans, Li Chengqian urgently sent people to send letters back to Chang'an, and had to mobilize craftsmen from Chang'an to smel. Liu Rengui had to be transferred here. The governance here could only be handed over to people like Liu Rengui who were both civil and military.

But at this time, he received a letter from Li Ke. Because the letter wrote in detail what Li Shimin was doing, Li Chengqian saw the thoughts of Li Shimin and the ministers after reading the letter, and was a little amused and crying.

Although the people here broke the Xueyantuo Khan's tent and captured the Xueyantuo nobles, the twenty coalition forces in Mobei were still fine. If these tribe vendors were allowed to surrender to the Tang Dynasty and then return to Mobei with all their soldiers, what would the Tang Dynasty get in this battle?

How can we manage the powerful Hetao area in Mobei?

These people will come to rob them when they are strong in the future. At that time, the Hetao area will still be a battlefield, which means that the Tang Dynasty's strategy can develop the economy.

Don’t say, ‘If you do business with the tribe, they will rob them if they have food to eat.’ This stupid thing is that the US economy is now the world’s number one. Isn’t it still robbing?

Moreover, history has proved many times that this land can only support so many people. Once it exceeds the boundary, people will rebel in hunger. Before completely solving the contradiction between human development and limited natural resources, they can only make others less.

So Li Chengqian's purpose this time was very simple to destroy the entire Mobei grassland and let them honestly accept the policies of the Tang Dynasty.

To defeat the ruins of Mobei, we just want to massacre 30,000 Xueyantuo's people, and at the same time we have to keep these 200,000 people.

In Li Chengqian's view, breaking the Xueyantuo Khan's tent was only half the victory, but Li Shimin actually believed that the Tang Dynasty had already won and could go to the east to go to the expedition to Goguryeo.

In this letter, Li Ke also told Li Chengqian the opinions of the ministers who were in charge.

These ministers were even worse than Li Shimin, and they all thought that they could move back to the court after the New Year.

Li Chengqian knew that these ministers would neither support Li Shimin's eastern expedition to Xueyantuo nor support Li Chengqian in governing the Hetao area.

Faced with this form, Li Chengqian could only write his thoughts into memorials and send them to the office, so that Li Shimin and his ministers knew that he, Li Chengqian planned to govern the Hetao area and not make his own plans behind his back and ignore him, the crown prince who was fighting abroad.

There are four main contents of Li Chengqian's memorials: one is to build the Great Wall on the original Qin Great Wall site, the second is to build a straight road from Guanzhong to the Hetao area, the third is to remove the throne states in the Hetao area and change it to counties. The fourth is that all tribes in the Hetao area will change their clothes and wear Han clothes and comb their Chinese clothes.

This is both a test of Li Chengqian's attitude and a test, so the content is very simple, and there is no mention of where the manpower and material resources needed to build a city or road construction come from.

At the same time, Li Chengqian wrote a private message to Li Shimin as his son, mainly answering his desire to conquer Goguryeo.

The unfilial man Cheng Qian bowed his head to a hundred bows and opened his father to the emperor:

I heard that my father wanted to personally conquer Goguryeo next year. My son thought about it repeatedly and said that he had a few confused words to tell my father that he would find out.

The Goguryeo people are easy to destroy but difficult to defeat. It is easy to destroy because the Goguryeo people also live in cities. As long as the army breaks through all their cities, it will be destroyed. It will not be like the grassland tribes, which will ride on horseback as soon as they arrive.

The difficulty is because he has cities inside, and he needs to attack one by one. As long as there are a few cities that cannot defeat Goguryeo, he can survive and attack each other with the Tang Dynasty.

Secondly, now is not a good time to conquer Goguryeo. Although Goguryeo experienced the killing of the monarch (Yuan avoided Li Yuan's taboo), Gai Suwen did not have a large-scale civil strife. All power was under the control of Quan Gai Suwen, and the people in the country lived a stable life. At this time, there was no minister of Goguryeo as the inner support of the Tang Dynasty. The Tang Dynasty attacked Goguryeo and could only make Goguryeo focus on fighting against the Tang Dynasty.

The military strategy says, "Know yourself and your enemy, you will never be defeated in a hundred battles." How can the father and emperor not know the details of Goguryeo lightly launch a large army?

If the Tang Dynasty wanted to conquer Goguryeo, it would be implemented according to the plan in the "Ten Year Plan". First, the departments in Guanzhong and northwest should be steadily cleaned up and stabilized, and then spent several years to save money and grain, and sent spies to join forces with the Han people who were not in Goguryeo during the Sui Dynasty to serve as internal support. First, mess up Goguryeo and make their people live in poverty, and then they could fight and succeed.

The father was in high spirits during the Spring and Autumn Period. The father was only good at planning and strategizing, not in charge of the emperor. When everything was settled, his sons personally led a large army to conquer Goguryeo to fulfill his father's wish.

Li Chengqian admitted that this letter was already tactful, so he sent someone to send the letter.

It was already eighteen years since Li Chengqian's memorial sent to Li Shimin. Li Shimin was celebrating the New Year. Although he was not grand in the Tai Chi Palace in Chang'an, the officials who had been deposed for Xue Yantuo still had a few days off, leaving only a few ministers to take turns to the Secretariat.

Li Chengqian was the crown prince or the highest commander to pacify Xue Yantuo in front of him, so Li Chengqian's memorial was sent to the desk of Yang Hongli, who was the revolving minister of the Secretariat.

Yang Hongli was also a royal family member of the Sui Dynasty. Before going to the expedition, he was a clerk of the Secretariat. He was promoted to the military minister by Li Shimin when he went to the expedition to handle the machinery.

Yang Hongli was shocked by Li Chengqian's boldness after seeing Li Chengqian's memorial. On the surface, the four points mentioned by Li Chengqian were completely copied by the Qin Dynasty's policies on the Hetao region.

The Qin Dynasty had already done it here to build the Great Wall, build straight roads, and travel to counties and counties. It seemed that there was no benefit except to waste the people and cause money.

There is also the Qiang tribe, Turk, Zhaowu and other tribes in the Hetao area, which changed their clothes and Yiguan and performed Han etiquette. This will also cause resistance from local tribes, and may even affect the negotiations with the Uighur tribes and other tribes. The 20 Xueyantuo army can be unavailable, and it depends on whether the Uighur tribes and other tribes can surrender to the Tang Dynasty in time.

Therefore, Yang Hongli believed that no matter how the court looked at this matter, it would be absolutely right now and that he would not be able to reveal it. However, he did not dare to make decisions about such a thing, so he had to get up to meet Li Shimin and ask him to suppress Li Chengqian.

Since Li Shishi expressed his intention to go east to goguryeo last time and was unanimously opposed by the ministers, Li Shimin has had little contact with ministers these days. He has to wait until Li Chengqian wrote a letter to support the east to deal with these ministers.

Li Shimin has been waiting for news about Li Chengqian these days, and then Li Shimin waited for a private message from Li Chengqian. The letter was written by Li Chengqian and his thin gold body made people look pleasing to the eye, but the content of the letter made Li Shimin angry.

This is not a letter written to me by my son. It is obvious that I taught my son a lesson. I actually spoke with me of my martial arts...

And the most unacceptable thing for Li Shimin was that Li Chengqian said that he was in high age and could no longer lead the commander to goguryeo in person, and Goguryeo would be left to him to fight.

Li Shimin looked at Li Chengqian's letter, his eyes widened, he gasped, and his forehead was exposed, and his veins were extremely angry.

At this time, the eunuch reported to Yang Hongli for a request for a visit.

"not see!"

Li Shimin roared loudly.

Li Shimin is also silly now, and he can't tell whether he has suffered from eating Huanglian. Although the letter Li Chengqian wrote to him made him angry, he was even more embarrassed to let the minister know.

First of all, it was not a glorious thing for him to be taught a lesson by his son. Moreover, even if he told the ministers about this, these ministers would only support Li Chengqian.

The eunuch went out and hurried back and said, "I'll tell Your Majesty that this matter is urgent, and it's related to Your Highness..."

"What?"
Chapter completed!