Shanhaiguan, the Xiongguan between the mountains and the sea, controls the southern entrance of the Liaoning West Corridor.

It was also the most important strategic defense pass between the Ming Dynasty and the Tartars outside the Guan, and later the Qing Dynasty, but in fact, the road to western Liaoning was not the only way out of Shanhaiguan and through the western Liaoning corridor.

In fact, in a more ancient period, during the Spring and Autumn Period and the Warring States Period, there were many small countries in the Yandi area, and later the Yan Kingdom became one of the Seven Heroes of the Warring States Period. Yan Guoxiong based in the northeast, not only with Zhao Jin Qi to compete for power, but also actively to the north to expand the territory, the Yan Great Wall is the Yan Mountain north of the vast area, as well as the east to the Liao River in the west of the large area of the Yan Great Wall are enclosed in the Yan Great Wall, than the Ming Great Wall to build more north.

At that time, most of the coastal areas of the Liaoning West Corridor were below sea level, and many roads were flooded every summer, and the Liaoning West Corridor was more along the Daling River Valley than the coastal line it is today.

And the Yan State has a broader territory in Yanbei, and they are not satisfied with relying only on the road of the Liaoxi Corridor.

Before the Liaoning West Corridor, there were actually three ancient roads in the West Liaoning. These three ancient roads are Pinggang Road through the Miyun Ancient North Pass, Lulong Road up through Xifeng Pass, and Wuzhi Road along the Qinglong River Valley to the north.

The three roads originate from three different southern passes, all crossing the Yanshan Mountains and then crossing the Luan River further north.

Zunhua area, in the Spring and Autumn Period, is a small country called the end of the territory, the capital city of the end of the city is in today's Ji County, after the Yan people control this area, the end of the city has become the Yan State of the newly established right Beiping County county governance.

Next to the right Beiping County is Yuyang County, and Yuyang got its name because it is in the south of Yushui, the so-called Yushui, that is, the Bai River in the Chaobai River.

The south entrance of the Wujian Road is controlled by the Wujian City, so the starting point of the Liaoxi Ancient Road, which is located in the east, is named the Wujian Road.

After the Luan River, which has a huge amount of water, comes down from Yan Mountain. Running through the entire area, it flows south into the sea, and along the river valley, it becomes a natural road through the Yanshan Mountains.

"In the Spring and Autumn Period here, it was the Guzhu State, and it was the same as the Wuzhong Kingdom, it was once the viscount vassal state of the Zhou State, like the Chu State, which was not an indigenous tribe of the Huaxia ethnic group, and was named a prince, and was finally annexed by the Yan State, achieving the prestige of one of the Seven Heroes of the Warring States of the Yan State."

The army followed the Luan River. Walk through this endless ancient road.

Liu Jun listened to the guide carefully introduce him to the history of this place, which is a place with a long history. In fact, the history of Chinese civilization is also a history of conquest. In the land of the Central Plains, there were countless tribes that once lived, the tribal war between the Yandi tribe and the Yellow Emperor tribe, and later they united with the tribal war with Chiyou.

In short, the tribes are constantly at war, merging, merging. Finally, when it came to the Qin State, the world was basically unified, and the cars were the same track, the same books, and the same text, and the Chinese Empire was truly formed. And the centuries-old continuation of the Han Empire. It made them melt deeper and have the Han nationality.

Countless surrounding tribes, conquered, assimilated. Then it became the Huaxia clan and the Han clan.

To the present, except for the Manchu Qing in the northeast outside the Guan. Mongolia in the northern steppe, Korea on the Korean Peninsula, the Turen and Miao people in Yungui in Guangxi, the Hui people in Qinghai in Gansu, and the Tibetans in Wusizang, etc., all over the vast world are basically all over the Chinese civilization, and the influence of the Han people is everywhere.

In the Spring and Autumn Period, the Yan State represented a part of the Chinese tribes, and continued to explore the northern frontier, and together with the Zhao State in the west, most of the Mongolian steppe in southern Mo was included in the part of China.

It is a pity that the climate of the grassland is not suitable for farming, and although the Central Plains farming civilization once controlled the Monan region, it was not able to occupy it for a long time.

At the beginning of the founding of the Ming Dynasty, it also hit the North Sea several times, but now, the northern border has retreated to the Yanshan Mountains, the northern foothills of Yanshan Mountain, which has long been occupied by the Mongolian tribes, and the Mongols have been conquered by the Qing people, but now this place is the territory of the Qing people.

Think about the Western Regions Protectorate in the Han and Tang Dynasties, the four counties of Liaodong in the Han Dynasty, and the Andong Protectorate in the Tang Dynasty.

When the Han people were at their strongest, they reached the Tianshan Mountains in the west, Korea in the east, and Lake Baikal in the north. But now, the northern frontier only relies on the Yanshan Mountains, and the capital of the empire is only three hundred miles away from the border.

Liu Jun stationed in Ma and looked into the distance, the great rivers and mountains of Yanbei could not become the screen of the empire, but it has always become a base for the enemy's invasion.

"Write down my words."

The historian who was driving immediately stepped forward, hurriedly turned a page, and picked up a pen.

"To the north of Yanshan, the Luanhe, Chaohe, Qinglonghe, and Tuhe rivers are established as Yanbei Province, the twenty-third province of the Han Empire, and the provincial capital Chengde."

As long as Liu Jun does not plan to move the capital and succeed to the throne of Beijing, then the Yanbei region must be controlled no matter what. Without the Yanbei region and relying only on one Yanshan mountain range for defense, the strategic defense depth of Gyeonggi would be too weak. With only one defense, a distance of several hundred miles, the enemy army outside the pass can break through to the city of Beijing at any time.

More than 200 years after the founding of the Ming Dynasty, there were tile thorns to capture the Ming Emperor, and the army came to the city of Beijing. Later, the Qing army bypassed the Shanhaiguan Pass and once again approached the city of Beijing.

All of this is because of the lack of defensive depth in the Jingshi.

The so-called Son of Heaven guarding the country, in a way, this is indeed very inspiring. On the other hand, this is a rather dangerous arrangement, especially when the capital is Beijing, and the enemies in the north are often fierce nomads or fishermen, hunters, and farmers, whose military power is often quite strong.

The thin layer of defense in Beijing has undoubtedly been attracting the enemy to the south. And once there is a hole in the defense layer of the official army on the front line of Yanshan, then the entire defense network will be useless, and the remedy will not be remedied, and the Beijing division will be immediately exposed to the enemy.

Historically, the Ming Dynasty fell, although there were various reasons, but this must also be related to the poor defense situation of the city of Beijing.

Even the Yan Kingdom in the Spring and Autumn Period knew that in order to gain a foothold in the north, the Great Wall of Yan must be built thousands of miles away from the north of the Yan capital.

Zhang Guodong, the garrison commander behind Liu Jun, didn't know that the emperor was thinking so long-term, he smiled and said, "The golden family of the year has long since declined, especially the Mongolian tribes in Monan. At that time, Lin Dan Khan still wanted to cheer up and reunify the tribes, but unfortunately he was colluded by the Northern Tartars to flee westward, and since then, the southern Mongol tribes have surrendered to the Manchu Tartars. ”

"But this time their master will not protect himself, and in the future, the Tartars will not want to get involved in Mo Nan again. Your Majesty doesn't say that you want to set up Yanbei Province, that is, you will set up Monan Province and Mobei Province, and it is not a problem, and when we turn back, we will be free, and please ask Your Majesty for permission, let the ministers lead the troops to Liaodong, and then fight all the way to Jianzhou and Heilongjiang. ”

Liu Jun smiled, "What is it to hit Heilongjiang, and then you will have to hit the fishing sea." ”

"You don't joke, Your Majesty has promised the last general today, and you must let me lead troops to recover Liaodong at that time."

"Hahaha, you don't joke, if you really hit the fishing sea in the future, I will make you the governor of Mobei."

A fast horse galloped in.

The knight rolled his saddle and dismounted, and the guards led him to the front after verifying his identity.

"Your Majesty, twenty miles ahead is Chengde."

"Have you arrived in Chengde, tell me how many Qing troops are left in Chengde?"

"Back to Your Majesty, there are less than 5,000 soldiers and horses left in the old camp of the Qing army in Chengde, who are responsible for collecting cattle, sheep, grain and grass from the nearby Mongolian League banner tribes and transferring them to the Chaohe frontline."

Liu Jun asked again, "Can the Tartars find our whereabouts?" ”

"The Tartars are unaware, and now there are only more than a thousand people in the camp, and the rest have gone out to collect food."

"Good." Liu Jun nodded, "Zhang Guodong." ”

"The minister is here."

"I ordered you to be the vanguard, lead a co-ordinator, and take the old camp of the Qing army in Chengde for me."

"Command!" Zhang Guodong responded happily.

Liu Jun specially explained, "If you meet the Mongols of the Karaqin Banner, you don't have to be polite to them, if they are willing to abandon the darkness and turn to the light, we can not blame the past, but if they are obsessed and want to go to the dark with the Tartars, then destroy them." ”

The Luanhe River is all under the Karaqin Banner, and the Karaqin tribe has three banners, which belong to the Zhuosuo Tumeng.

For these Mongols who submitted to the Qing Dynasty, Liu Jun had no good attitude. In the first two hundred years of the Ming Dynasty, almost all of them were against the Ming Dynasty, robbing the criminals, and later reached a peace agreement with the Ming Dynasty, trading with each other, but also the well water did not violate the river water, when the Jurchens first rose, they also followed the Ming Dynasty to do the Jurchens, robbed their women, killed his children, and burned their houses.

But later the Jurchens came back, and they couldn't beat them and immediately coaxed, knelt on the ground and sang about conquest, and since then they have followed the Manchus to fight the Ming Dynasty.

"Please rest assured, Your Majesty, the minister will not fail in his mission. This time, whether it is Manchu wild boar skin or Mongolian Tatar, they all make them look good. ”

"After taking Chengde, don't go lightly, wait for me to lead most of the troops over. This time, we're going to catch a big fish, so don't give me a scare. ”

Chaohe Qing army camp.

Hauge had already ordered his men under the Blue Banner to pack up and prepare to retreat.

Duoduo still refused to retreat, and he did not allow Wu Sangui and Zu Dashou to retreat. In the tent, Duoduo was drinking, and his brother Azig was sitting on the side, "Haug is really leaving, why do you still have the heart to drink?" He has 50,000 horses in his hands, and if he leaves, our strength will be greatly reduced. ”

"It's going to rain, my mother is going to get married, he Haoge is leaving, how can I stop it?"

Azig slammed his fist on the table, "This dog-day Hauge, he did it on purpose to dismantle our platform at this time." Brother, why don't we withdraw too, Liu Jiye has not moved yet, I always feel uneasy. Could it be that this bastard has already gone to copy our back road, or to fight Liaodong? ”

Duoduo shook his head, "Impossible, I also have spies stationed in the Guannei, these days I have received secret reports from the Guannei every day, these large armies stationed in Guanning and the Yanbei Great Wall, not a single town of soldiers and horses has been mobilized. In the Gyeonggi area of Guannai, there is no mobilization of soldiers and horses, Liu Jiye is still pretending to be with us, now it depends on who can't hold his breath, who can't hold his breath, he will lose his momentum, and he can only retreat, this time, I want to be tough with Liu Jiye to the end, I want to see how long he can hold on! ”

(There is a place in the front where the brain is pumping, and the writing is confused, Haug is the nephew of Dord, and Zilharan is the brother of Dordor in the family.) (To be continued.) )