Wu Lian pointed to the location of the Xianbei royal court in the Shanshan Mountain in the picture and said: The Xianbei is also nomadic. The so-called royal court, let alone Luoyang, is not as good as Lousang. It is just a large tent surrounded by wooden fences. It can be pulled out of camp at any time. In addition, the Xianbei can also build high cars, wading on snow and wading like walking on flat ground. Travel a hundred miles a day. As long as the Han army goes out of the frontier, the royal court can migrate at most two days. At that time, only heavy troops are ambushed around the Shanshan Mountain, and the Han army will be defeated.

Huang Zhong nodded slightly: The Hu people were nomadic. The so-called royal courts were all tents and caravans, without any tiles. Walk away. Danhan Mountain was 300 miles north of Gaoliu. As soon as the army went out of the frontier, it would be discovered by Xianbei scouts. The closest Xianbei tribes would raise troops to fight, use guerrilla tactics, and fight and walk to block the pace of the Han army. In this way, the 300 miles that could be completed in three days may take five days, seven days, or even ten days to reach. At that time, Danhan Mountain had already ambushed the Xianbei heavy troops. The Han army who fought here had not yet set foot and set up camp, and fought from all directions. Our army was in danger.

Liu Bei sighed: My Han Dynasty was worried about internal and external troubles, including Qiang people in the west, barbarians in the south, Xianbei in the north, and thieves in the middle. Because of this, we cannot fight for a long time. We can only fight quickly and decide quickly. The same is true for the Xianbei. It happened to be locust plague and grass was short of grass. Cattle and sheep all starved to death, so at the turn of spring and summer, we went south to plunder. Both sides wanted to fight quickly. Therefore, it didn't take long to decide the winner.

This turned his attention to Danhan Mountain: Wulian, what is the mountain here? Is it suitable for setting up an ambush?

Wu Lian replied: The north slope of Danhan Mountain is gentle and the south slope is steep. The mountains are dense, with high and low. The valleys are crisscrossing, mostly traffic channels in front and back. Xianbei people who are familiar with the terrain can freely walk around, either south or between, or cross. When our army first arrives in a strange place, they will inevitably lose sight of one thing.

Liu Bei asked again: If we hear that our army is coming and the Xianbei royal court sets out to leave, where will we go?

Wu Lian replied casually: Go east.

Seeing her blurted out, Liu Bei asked: Why?

Wu Lian pointed to a mountain range around Danhan Mountain and said: Danhan Mountain is a mountain group in the middle of Yinshan Mountain. Yinshan lies two thousand miles from east to west and one hundred miles wide from north to south. To the north, you have to cross Yinshan Mountain. Although there are valleys to pass, the terrain is undulating, and driving is not easy. Staying away from aquatic plants, straw, salt land, and cattle and sheep stocks are not enough, so it is difficult to continue. Third, if the Wangting goes north, its control over the three Xianbei people will be weakened, and it will be very chaotic for a long time. Moreover, Hanting is full of cattle and rushing to the nest. It is too late to cross Yinshan Mountain. Therefore, it is the most convenient to move along the south slope of Yinshan Mountain.

Liu Bei asked again: Since both sides can be used, why do you firmly go east?

Huang Zhong replied: Yanmen, Yunzhong and other border counties in Bingzhou are all west of Danhan Mountain. If Wangting travels westward, he just hits two Han cavalry head-on. Since he wants to escape from disaster, the farther away from the army, the better. Therefore, he goes east.

Liu Bei looked at the map carefully and then realized: It was true!

Along the southern foot of Yinshan Mountain, he went east. Liu Bei's eyes came from Dai County and Shanggu, and saw Yuyang County all the way. He suddenly stopped in a place close to Youbeiping.

Then he asked: Where is this?

Huang Zhong leaned over and saw: Baitan County. It was established by the former Han Dynasty, but the current Han Dynasty has been abolished.

From Danhan Mountain to the old city of Baitan County, it is about a thousand miles away. If an army is sent to seize Baitan City, stop the flag and restore the city walls. Wait until the royal court moves eastward and intercepts halfway. Can a big event be accomplished?

Liu Bei thought about it carefully and seemed to be inappropriate!

Then he asked: How can you reach Baitan City quickly?

A flash of light flashed in Huang Zhong's eyes, obviously knowing the intention of the young master. Then he turned his eyes to Wulian: Wuhuan, Shanggu, had to know something about the border county for a long time.

Wu Lian was stunned at first, and then he focused on it: When I asked Brother Wang.

Liu Bei didn't know. The Northern Expedition in history was as follows: In August of the sixth year of Xiping, Emperor Ling used the Xianbei to enter the border and plunder the border counties for years, and ordered Xia Yu, the Wuhuan lieutenant, to defeat the Xianbei Central Army General Tian Yan, and the Xiongnu General Zang Min, each led more than 10,000 cavalrymen, and went out from Gaoliu (Daijun), Yunzhong County, and Yanmen County to attack the Xianbei in three directions. The Han army went out of the border for more than 2,000 miles, and the Xianbei leader Tan Shihuai ordered the three tribes of the east, middle and west to fight, defeating the Han army. Xia Yu and other troops lost all the supplies, and seven or eight of them died in battle. The three of them led dozens of cavalry to escape. They should be executed and paid ransom to avoid death. They were all demoted to common people for the crime of defeating the army. Since then, the Xianbei army has become more powerful and has been attacked on the Han border for many years.

This history is vague. No one knows what happened after leaving the border. However, from a few words in history books, one can see a few.

The Han court sent three great generals and divided the troops into three groups. They were all cavalry. Obviously, they were using a strategy to break the nest.

The Han army went out to the frontier for more than 2,000 miles. However, Danhan Mountain was only 300 miles away from Gaoliu County. If you hit the enemy's nest, how could you go to fight for more than 2,000 miles? It shows that the Xianbei royal court, as Wu Lian said, migrated to another place before the army arrived. The Han army pursued all the way, so they went to fight for more than 2,000 miles. The specific route is unknown, and you can tell from the "more than 2,000 miles" that there are many twists and turns.

The Han army fought continuously, the morale of the army was exhausted, and the horse was scarce. During the pursuit, the troops were gradually eroded by the Xianbei wolf cavalry. Finally, the Xianbei surrounded the four sides and was destroyed in one battle.

In this battle, all the cavalry of the North Goblins were damaged. The Southern Xiongnu King Tu Teruozhu Zhu Shanyu was seriously injured and died suddenly the next year. A few years ago, the old Shanyu of Yiling was killed. Tu Teruozhu had just succeeded to the throne, but now he died in a battle. He caused turmoil in the Huns and triggered internal strife.

No longer able to resist the Xianbei going south.

Fortunately, four years later, Tan Shihuai, who was in his prime, died suddenly for no reason. The Xianbei also split into three tribes, and each ruled and attacked each other. He was unable to annex and encroach on the Han territory.

Huang Zhong said that the court would send troops as early as August and as late as September.

Liu Bei nodded and praised him for his goodness.

There are still three or four months for Liu Bei to make progress and he needs to prepare early.

This made it secretly arranged for the Hou Mansion to build the city-guarding tools and prepare marching dry food without mentioning the forage.

It is confidential. It is not appropriate to write a letter. Wu Lian sent his personal letter to the north. Soon, Wu Yan, the king of Wuhuan of Youbeiping, sent a message back to Huyu. He said that he could reach Baitantun for 400 miles away from Lulong Pass.

Lu Longsai is located at the eastmost point of the foothills of Xuwu Mountain and is located between the two mountains. Meishan on the left and Yunshan on the right.

During the Western Han Dynasty, the Han and the Huns fought in the Youbeiping area for many years, and Lulong Pass was still open. However, from the Jianwu period of the Eastern Han Dynasty to the present, for more than a hundred years, this pass has rarely been visited, and only "micro-paths can be obtained". It is difficult to travel, and there are hundreds of miles.

Furthermore, what is a garrison city?

turn out to be.

In order to defend against foreign races and develop borders, the Han Dynasty created a large number of passes along the Great Wall line. Such as Feng, Sui, Pass, Houcheng and Tuncheng were used as a warning and garrison, and formed a solid defense system. Tuncheng is not only a place for heavy troops to be stationed, but also a place for frontier farming.

"Bai Tan" means "Bai Tanshan", located on the south bank of Gaoshishui (Flower River).

"Shui Jing Notes": "Ru River is southeastern, and the water flows back to Qu, which is called Qu River. The town is three hundred miles northeast, and then it goes east to the gorge and enters the boundary of Anzhou, and flows southeast to the ancient city of Baitan County, Yuyang." "Han Shu? Geographical Records" says: "Ru River comes out of the northern barbarians of the county. Emperor Jing of Han issued an edict to Li Guang: The general is the commander of the Dongyuan, and the whitetan is the one who misses the whitetan."
Chapter completed!