Datang: The prince of salted fish was overheard by Li Er

Although I don't know what happened at Cheng Yaojin's house that day, but in the placement test not long after, Cheng Chumo went to the liberal arts department, while Cheng Chuliang went to the technology department.

What was even more surprising was that these two sloppy and gangster-like brats who usually looked sloppy and full of gangsters actually went to the honor class after the results of the sub-subject examinations came out.

Immediately, the subject examinations of the two Cheng brothers became a big news inside Xinxue.

But this is not the biggest news of this sub-subject examination. The result that surprised everyone came from the martial arts.

This year's No.1 in martial arts was won by a little-known person named Xue Li.

It is said that this person looked up to the sky and laughed when he saw that his grades were ranked first, and said that he had lived up to the cultivation of the prince.

After some inquiring by the crowd, everyone found out that this young man's surname is Xue Mingli, his style name is Rengui, and he was born in the Xue family of Hedong.

This time Xue Rengui will take the exam, and it is entirely because of Yan Wang Li You.

It is said that Xue Rengui's grades in the entrance examination are quite good, so he is qualified to take the second-year student's sub-subject examination.

For a moment, everyone's eyes once again turned to the King of Yan, Li You, who had disappeared in Chang'an for a long time.

However, Li You never showed up until this year's autumn festival.

At the autumn festival, Li Shi crowned the two princes who were still in their infancy. Li Zhi, the prince born to Empress Changsun, was crowned King of Jin, and Li Chuang was crowned King of Chu, which was the king of Li You. Lord.

After the canonization was completed, Li Shimin looked at Li You meaningfully and said, "Your, you will have to worry more about these two younger brothers in the future."

Li You naturally knew what Li Shimin meant, and immediately nodded in agreement.

With the appearance of Li You, the liquidation of the war national debt was also put on the agenda by the ministers.

Facing everyone's questions, Li You calmly took out a map and handed it to Li Shimin.

"Father, this map is the newly added land area jointly surveyed by the envoy of the household department and Yushitai this time. Please have a look at it."

Li Shimin took the map with great interest, but frowned as the map unfolded.

Li Shimin asked in puzzlement: "Your, why is the area of ​​this newly added country so far different from the range of the Eastern Turkic Empire marked on the grassland map I used before?"

It turns out that on the map in Li Shimin's hands, the land of the new Tang Dynasty marked is less than one-third of the land originally occupied by Jieli Khan, and it is only the area where the newly established five prefectures are located.

Hearing Li Shimin's words, all the ministers present panicked.

The smaller the size of the country, the less land they can entrust, which is equivalent to directly reducing their income.

Facing Li Shimin's questioning, Li You also calmly asked: "Father, ministers, do you know how the borders of this country are divided?"

Hearing this, Wei Wang Li Tai stood up.

He is currently compiling a book titled "Xiaodizhi", which takes the state as the unit and describes the history, location, naming, mountains and rivers, cities, historical sites, myths and legends, and major historical events of each county.

So it can be said that the boundary division is clear.

"There are historical reasons for the division of states, counties and borders, but in general there are only two."

"Formed with the deformation of mountains and rivers and human agreement."

"Intuitively speaking, the deformation of mountains and rivers means that natural geographical features such as mountains and rivers are used as the boundaries of administrative divisions, and administrative divisions are consistent with natural geographical divisions."

"The so-called 'states and counties change sometimes, mountains and rivers are not easy through the ages.' This is the truth."

Most of the ministers present were also knowledgeable people. When they heard Li Tai's first point, they all nodded secretly.

After Li Tai saw that everyone understood, he continued, "This second agreement is a little more complicated."

"According to what we said before, if it is simply divided according to geography, it is easy for a state to become a country by itself."

"So we're going to have a canine situation when we're setting state boundaries to counteract that."

"Of course at the national border, that's not the case."

"Man-made agreements on national borders mostly refer to the actual control area established by relying on fortifications."

"It's like the Great Wall in the north. Before the fall of the Eastern Turks, it was the dividing line between the Tang Dynasty and the Turks. The land within the Great Wall is my land in China."

After Li Tai finished speaking, he looked at Li You and asked, "It's not that the emperor thinks what I said is correct."

Li You smiled slightly and said, "What Brother Huang said is absolutely true."

"This time the newly added National Border Household Department and Yushitai still follow this principle."

"But because the Turkic grasslands are too flat, we can't find a definite boundary between mountains and rivers in many places. In order to show our friendship with Western Turks, we can only use the places that can be reached within three days from the five new state capitals as The border of the Tang Dynasty."

"This is also our helpless move."

Hearing this, Li Shimin finally understood, but comparing the two maps, he pointed to the empty place and asked, "Isn't it a pity that You'er is such an empty place?"

After Li Shimin opened his mouth, people from all the big families quickly agreed.

"That's right, didn't the King of Wei say just now that the place where fortifications are built can also be used as a division of national boundaries, so we can build fortifications at the original borders."

"When the Han army went to the Western Regions, didn't they leave many such fortifications in the Western Regions, and included the countries of the Western Regions into the territory of the Han Dynasty?"

"We can do the same now."

Hearing these voices, Li You felt happy.

[Hey, it's been tricked. 】

[The labor and management probably drew the map so small, and asked the little fat man to cooperate with me in this scene, so what are you waiting for? 】

[I also hope that Li Er can cooperate later and cry poorly with me, so that these aristocratic families can make another fortune. 】

Although he was happy in his heart, Li You showed a look of embarrassment on his face.

"Father, ministers, it's not that I don't want to build fortifications at the border, but that the current Tang Dynasty has no way to build them."

"Now that the grassland is newly established, the roads leading to the five new state capitals are impassable, and even the new state capitals have not been built, and fortifications have been built hastily. Once there is a war, won't it be in vain to bury my great Tang athlete?"

"Now all the ministers are urging the Ministry of Households to settle the war national debt, and that can only be done according to the situation that can be actually controlled now."

"My lords, even if this is the case, the income from the war national debt this time is very impressive."

Faced with the considerable benefits Li You said, the ministers did not buy it.

"How can the territory of the Tang Dynasty be a trifling matter? I implore Your Majesty to issue corvée service to connect the five northern prefectures, build county towns in the five northern prefectures, and build fortifications on the borderlands of the Tang Dynasty to defend the territory of the Tang Dynasty."

If Li You hadn't heard Li You's heartfelt voice, Li Shimin might have agreed to these interviews in a flash of enthusiasm.

But now, he suddenly sat up straight, with a troubled look on his face.

'Hey, bastard, let me show you my acting skills! '