Weiyang Palace, Qingliang Palace.

At this moment, this summer residence of the Son of Han has become a large hall plastered with maps.

In the past year, the meticulous work of the Han dynasty and the internal response of the Xiongnu have exhausted almost all their efforts to inspect and map the geography of the Hetao area.

Now, the Han dynasty has basically figured out the details of the Xiongnu-controlled area in the entire Dahetao region.

Although it may not be possible, like the invading Japanese army, even a mountain road is marked with a map.

But the main rivers, lakes, and mountains and plains, have all figured out their locations and depths.

More importantly, the Han family also figured out the reality of the entire Hetao defense area of the Xiongnu.

It was unexpected by Liu Che.

The Xiongnu also zoned part of the Hexi Corridor into the Hetao.

Among them, it includes the ancestral home of Wusun, the Kunxi region, and the pastures controlled by the Hutu tribe.

That is, Jiuquan, Shuofang, Wuwei and other counties of the Han dynasty in the future.

In the present, it is part of the Huns' default Hetao.

This may be for historical reasons.

In the process of the rise of the Xiongnu, the Yueshi and Wusun, which originated in Hexi, were once enemies of them.

Even, in the history of the Xiongnu, the war between them and the Yue clan for the west of the river was the most cruel, long, and at the same time the most challenging.

From Maotun to old age, it took two generations for the Huns to expel the great enemy of the Yue clan.

However, in the vast Hexi Corridor, there are still a large number of remnants of the Yueshi clan.

This is called the Satsuki clan.

These small tribes, hiding in the ravines, come out from time to time to harass and plunder.

In addition, the Qiang tribes in the mountains on both sides of the Hexi Corridor look easy to bully on the surface.

But it's also slippery.

These sheep herding tribes often make some moths, which makes the Huns uncomfortable.

Therefore, in the eyes of the Huns, Hexi and Hetao are basically one.

The tribes of the two places also often exchange news and information.

There will even be joint defense.

This is also determined by the characteristics of the Xiongnu.

The double-headed eagle policy of the Xiongnu Empire, consisting of four pillars.

The left and right Xian Wang, as the brain of the east and west directions, Shan Yuting is the nerve and center, and the left and right Gu Li Wang are the limbs of the Xiongnu, and the left and right generals and the left and right Dadang are the blood vessels and muscles of the Huns.

The rest of the tribes made up the cells and blood of the Huns.

Under normal circumstances, the Xiongnu Empire in its heyday could recruit a cavalry of more than 400,000 to deal with the dangers he encountered in any direction within half a year.

At the same time, the Huns had a wide enough strategic depth to adapt to and respond to the attacks of a strong enemy.

To be reasonable, the vast territory of the empire with a territory of tens of thousands of miles is enough for the Huns to not break their bones even if they give up the entire Munan.

For nomadic people who live in pursuit of water and grass, it is normal to go north in spring and summer, and return to the south in autumn and winter.

However, there is one exception.

This is the Hetao and Hexi.

The Hetao, needless to say, is a surging river that nourishes this plugged into heaven, where there is no shortage of grass in all seasons except winter.

The Huns had long since learned the skills of drying hay and storing forage in midsummer and autumn.

Again, you can't.

And there was no need for the Huns to do it themselves, the slaves would help them with the work.

As for Hexi?

Hexi at this time is not Hexi in later generations.

Although the uplift of the Tibetan Plateau blocks the warm and humid air from the Indian Ocean, the monsoon from the Pacific Ocean forms a strong enough rainfall in the mountainous areas in the Hexi Corridor.

What's more, the uplift of the Qilian Mountains and the powerful glaciers left over from the Ice Age, year after year, are providing this hot land with inexhaustible snow water.

In later generations, the largest inland river in Gansu, the Heihe River, originated in the Qilian Mountains.

Throughout the Qilian Mountains, there are dozens of large and small rivers that meander down the canyon.

So much so, underneath the canyon, wetlands and swamps were formed.

In fact, it has formed one of the largest lakes in the entire Hexi region and even in the whole of Asia-Juyanze.

Now, in Hexi, there are countless oases and wetlands.

Now, in Hexi, there is a very suitable environment and climate for farming.

Even among the tribes of the Huns, there were also some farming tribes in this area.

Such as......

The Luhou tribe!

Liu Che raised his head and looked at the great name of the Luhou tribe that had been marked on the map and had been changed to Gaoque.

A sneer appeared at the corner of his mouth.

The fuse of the Han-Hungarian Henan War more than 20 years ago was this Luhou tribe!

Han and Lu Hou can be described as old friends, old enemies, and old rivals!

After disappearing from the Han family's sight for more than twenty years, the Luhou tribe returned again.

This......

Liu Che planned to settle accounts with him.

And this Luhou tribe, in history, is known for being good at building cities.

The big traitors Zhao Xin and Wei Lu, the so-called Zhao Xin City and Wei Lu City, were all built by these guys.

In addition, the current Gaoque City, Dragon City, and Guzang City of the Hugh Slaughter People are also the handiwork of these guys!

If you think that they are only good at building cities, you are very wrong!

In Liu Che's eyes, the danger level of the Lu Hou tribe was second only to the main elite of the Shan Yuting headquarters of the Xiongnu.

It's even more dangerous than the Zhelan!

In history, in Huo Quai's life, there were very few Xiongnu tribes who really caused trouble to him.

Among them, there is this Luhou tribe.

In the decisive battle of Gaolan Mountain, Huo Qubing collided head-on with the two elites of the Xiongnu, Lu Hou and Zhelan, and the two armies charged with white knives, fought hand-to-hand with their bare faces, and killed in the dark.

In this battle, although Huo Qubing completely annihilated the Xiongnu's Zhelan and Luhou tribes, his own losses were also very heavy.

Even the biggest loss of his life.

However, it was in Gaolan Mountain that the two tribes of Zhelan and Luhou were completely annihilated.

Huo Quai's illness had the feat of sealing the wolf Juxu Mountain.

Huo Quai's army fought for more than 10,000 miles, went deep into the Hanhai Sea, sealed the wolf Juxu Mountain, and the Huns only dared to watch, but did not dare to brush their tiger whiskers.

This is because Gaolan Mountain completely defeated and tore up all the illusions of the Huns.

Since then, there has been no royal court in the south of the country.

The Luhou tribe is the tribe that is best at mountain warfare and defensive warfare among the Xiongnu tribes.

It has to gnaw down the Gaoque fortress it defends, and even before gnawing Gaoque, it has to force its way across the North River.

Liu Che knows very well how difficult this is.

What's more, before Gaoque, there was also a Ziling defense line garrisoned by the Ruolu people.

If Lu is a person, Liu Che has never heard of it.

This tribe is said to have been transferred from the west to the Hetao.

The Han family didn't know much about this strange enemy.

So......

"Let the people of this tribe who know about it deal with it!" Liu Che sneered.

In his hands, he pinched the remnants of Wusun, as well as more than 20,000 Xiongnu prisoners of war and the surrendered Xiongnu Loulan tribe, a total of nearly 30,000 combat forces.

The Han family does not raise waste, nor does it raise rice worms.

Now, whether they are attached or captured, it is time for them to contribute their meager strength to the Han family.

What Liu Che really wanted to deal with and solve was the Luhou tribe entrenched in the Gaoque fortress, and the two Xiongnu tribes who provided flank cover for the Luhou tribe.

"Activate the secret envoy, I want to know the preferences and character of this King Lu Hou and his troops!" Liu Che ordered lightly.

"No!" Beside him, the figure of a eunuch quietly retreated. (To be continued.) )