After Liu Bei finished reading it, his mentor took out the handwritten book of the censor Liu Tao. He said that the court might use his mentor as a counselor, Dongguan proofread Confucian classics, and participated in the work of continuing the "Han Records (known in history as "Han Records of Dongguan").

"Seeing means watching, watching from above." It refers to tall buildings.

Dongguan is located in the Nangong of Luoyang. The buildings are tall and gorgeous, with twelve upper floors of pavilions, surrounded by palaces and pavilions, shaded by green trees and elegant environment. It is the main place for the palace to collect pictures and archives and edit historical books.

The Confessionate Lang, appointed by the Han Dynasty, was one of the men and officials to Guangluxun. He was in charge of consultants to deal with things, and had no usual ranks. He was 600 stones. He was recruited by many virtuous and upright people.

Liu Bei smiled and said: This man is leisurely.

My teacher also laughed: I went to continue writing the "Han Ji" this time, which is exactly what I want. As a teacher, you can go first. When everything in the city is arranged properly, you will come to Luoyang.

Liu Bei nodded: OK.

The Xianbei of Tan Shihuai has become a big trouble. Liu Bei doesn't remember anyone who beat Tan Shihuai. This time he went north to fight against the thieves, he will inevitably be defeated. Fortunately, Tan Shihuai died young. The Xianbei was divided into three tribes, no longer as before.

After class, Liu Bei returned to the mansion and summoned Wulian to inquire about the Xianbei affairs.

Wu Lian said that since Tan Shihuai unified the Xianbei tribes, they have divided the territory into three places. The east to Youbeiping is the east, the middle to Shanggu is the middle, and the west to Shanggu is the west to Shanggu is the west. The three divisions are managed by the adults, and they are directly under Tan Shihuai.

Wu Lian also said that there are three other ways to survive in the Hu people: "water plants", "cubes" and "salt land". After Tan Shihuai became the Xianbei emperor, she established the royal court on Danhan Mountain and climbed the waters of Qius, and went to Gaoliu for more than 300 miles north. The troops were very strong, and all the people from the east and west returned. Later, they crossed the borders south, rejected Dingling in the north, and surrendered to Wusun in the east, and attacked Wusun in the west, occupying the former land of the Huns, with more than 1,400 miles east and west, and more than 7,000 miles north and south, and scattered the salt ponds. The momentum was growing.

As Wu Lian said, there are three resources on which the Hu people depend for their survival: "water plants", "straw trees", and "salt land".

Aquatic plants are natural pastures with abundant aquatic plants. Stuff refers to dry hay and salt land, which naturally refers to salt-producing land.

The main salts that are eaten nowadays include: sea salt, pond salt (lake salt), well salt, and rock salt (mine salt). The pond salt has a long history. During the Western Zhou Dynasty, Jiechi had a large-scale production of pond salt. Because the salt pool was in Jie County, Hedong, it was called Jiechi, also known as "Hedong Salt Pond". Because the salt particles in the pond salt were white, it was called "Hedong Dasalt". The pickles pickles pickled with pond salt were of good color and tasted, and they remained alive for a long time.

There are also salt pools in border counties. For example, there are Bai and Wuer Yan Ponds in Wuyuan County.

These salt ponds were also the focus of the Hu people occupying the plunder.

China was established by agriculture, and since ancient times, water, drought and locusts have been listed as the three major harms. The Book of Songs? Xiaoya records that "draw the borer and teng" are records. Teng is a locust.

Locust plagues often arise with droughts. On the one hand, in drought years, due to the drop in groundwater levels, the soil solidification and hard water content, the number of egg laying of locusts increases greatly. At the same time, in drought years, the water surface of rivers and lakes shrinks and low-lying areas are exposed, which also provides locusts with more suitable places for laying eggs. On the other hand, plants grown in arid environment have low water content, locusts feed on this, grow faster, and have extremely high fertility.

Therefore, since ancient times, there has been a saying that "drought is extreme and locusts are caused by extreme drought".

This locust plague has affected a lot and the grasslands are also affected. Therefore, the Xianbei, who often invades the border in the age of time, has plundered border counties this year in the spring and summer when it was supposed to have horses to raise fat.

Xia Yu, the captain of the Wuhuan School, saw the opportunity that flashed through this crisis. He wanted to take advantage of the weakness of the Xianbei and pacify the northern border in one fell swoop.

In the long-lasting war with the Western Qiang, Xianbei, Wuhuan, and the protracted war, our dynasty produced a group of loyal ministers and famous generals. For example, "Sanming of Liangzhou": Huangfu Gui, Zhang Huan, and Duan Gui. Not only were these three very talented, but a group of assistant officials and generals under their command were all generals. Xia Yu was one of them. In his early years, Xia Yu was the guardian of the Qiang Sima of Duan Gui and made many military achievements. In the third year of Xiping, Xia Yu was the prefect of Liangzhou Beidi County. The Xianbei attacked the northern part of the land, and Xia Yu pursued and defeated him. He was also appointed as the captain of the Wuhuan School.

Liu Bei asked Wulian that at this time, the grassland that should have been green grass did not grow. All the green seedlings were eaten by locusts. The locust plagues in the seven states of the Han Dynasty were opened to provide disaster relief, and farmers might survive. However, if there were no cattle and sheep, the grassland herders could only starve to death. The reason why the Xianbei made an exception to attack in April shows that the situation was urgent.

Just like Zuo Feng's secret letter, this battle is inevitable.

Thinking of this, Liu Bei hurriedly took out the topographic scroll and took a closer look.

He also called out his confidant generals Huang Zhong, Xu Rong, Wu Lian and others to ask: If they are generals, how should they advance?

Xu Rong was traversing Liaodong, and the terrain of the border counties was in his heart. Then he said: After Tan Shihuai unified the Xianbei tribes, he divided the territory into three places. The east of Youbeiping is the east, the middle of Youbeiping is the upper part, and the west of Shanggu is the west of Shanggu is the west. If I am a general, I will divide the troops into three groups: one army out of Dai County, one army out of Yunzhong, and another army out of Yanmen. The three lines advance together and attack the royal court directly!

Liu Bei hurriedly picked up the lamp to see it.

Three hundred miles north of Gaoliu County, Dai County, is the location of the Xianbei royal court.

It is said that the Xianbei bordered the border in the south, rejected Dingling in the north, and attacked Wusun in the east. It occupied the former land of the Xiongnu, with more than 1,000 miles from east to west and more than 7,000 miles from north to south, and covered mountains, rivers, waters and salt ponds. Such a huge territory was just in the middle and guarded. Why did the royal court stand on the Danhan Mountain so close to our Han Dynasty?

Seeing that Liu Bei seemed to be puzzled, Xu Rong explained: There are three things that the Hu people depend on: water plants, straw and salt land. These places are all numbers. The locations are fixed, and they are all close to our border.

Because of this, when the Han Dynasty came, they often used the Hu people as their guides or provided information through border residents who were familiar with Hu language. The court used cavalry maneuvers to carry out rapid and accurate beheading operations on the Hu people's garrison and eliminated the other party's vitality. It is called: pounding the nest.

It means to directly attack the enemy's nest.

Xu Rong said again: I expected that the imperial court would take a plan to break the nest during this northern expedition!

I see!

Because of the strategy of damaging the nest, and because Tan Shihuai divided the Xianbei into three divisions in the east, middle and west, they had to divide the troops into three groups. The troops were all divided into three groups. They were all great Han cavalry. They ran day and night, and if they broke the enemy one by one, they could damn the enemy's nest. If they could kill the Hu chief Tan Shihuai, the Xianbei would be in chaos. After the split, the Xianbei would no longer be able to fight against the Northern Xiongnu, the Wuhuan, the three counties, and the Hu people who surrendered to the Han court.

It makes sense to act like this.

But if we cannot fight quickly and attack with one blow, we will fall into a protracted battle. Now the Han Ting, which is both internal and external troubles, cannot support it at all.

Xia Yu, the captain of the Wuhuan, said: "Please conquer the troops of Youzhou from the frontier to attack them. One winter and two springs will surely be able to destroy the birds." This battle is also limited to one year in 'one winter and two springs'!

In this way, it must be a strategy to make trouble.

Seeing that Huang Zhong was silent, Liu Bei asked: What else do you think of the adoptive father?

Before Huang Zhong could speak, Wu Lian shook her head: "This strategy is dangerous."
Chapter completed!