This mountain next to it?

Zeng Yunfeng looked at it and pointed to another mountain next to it. These two mountains were in an inverted shape in the north direction on the map. The people from the Central Plains whom Zeng Yunfeng had pointed out were called Yanran Mountain, and the other side was written on Buerhan Mountain, but Zeng Yunfeng knew that it was Langjuxu Mountain.

This place is where Huo Qubing, the general of the Han Dynasty cavalry, was attacked by the Han Dynasty, and where Fenglangjuxu was found.

The moment he saw this map, Zeng Yunfeng's mind saw the situation of Zhu Di following the grasslands of the Greater Xing'an Mountains and heading north to the banks of the Onon River to watch the sunset.

At that time, Langjuxu Mountain was right in front of them, but Zhu Di stopped here and could no longer take a step forward. He died of illness on the way back to the army and failed. The great cause of the Northern Expedition came to an abrupt end and he was unable to truly conquer the Oirat in the end.

The Five Conquests of Mongolia were actually bones, snakes, and they ended up in vain.

After Zhu Di, the entire war situation became a strategic stalemate. Emperor Xuande Zhu Zhanji was unable to go deep into the grasslands and only maintained peace on the border.

Zhu Zhanji's son Zhu Qizhen, whenever Zhu Qizhen mentioned Zhu Qizhen, would be angry. This prodigal son almost destroyed the elite of the Ming Dynasty.

Similarly, the war between the Ming Dynasty and the grassland tribes deviated from the offensive and defensive form here. From then on, the border was unstable until the end of the Ming Dynasty, and the border troubles never stopped.

This is why Zeng Yunfeng is so worried. The Mongols seem to have lost their dynasties, but in fact the grassland still has profound power.

Zeng Yunfeng turned his attention to the grassland, which was divided into three relatively large areas by two mountains. Yanran Mountain Langjuxu Mountain divided the north of Mobei into three major areas. There are two mountains next to these three areas, the two mountains are the Greater Xing'an Mountains and the Altai Mountains.

These four mountain ranges are sandwiched between three grasslands and basins, forming the current northern desert.

This desert is where the grassland people recuperate. There are two desert Gobi between the desert and the Central Plains, which just blocked the attack route of the Central Plains dynasty. These two deserts are located in the north and northwest of the Hetao land.

When Zhu Di and Wu went to Mongolia, they all went to the grassland at the foot of the Daxinganling Mountains after leaving Yanshan Mountain.

There are rich aquatic plants on the western foot of the Greater Xing'an Mountains, forming two large grasslands, from south to north, the current xlgl grassland and hlbe grassland.

The reason why we cannot go to the desert Gobi in the middle of the entire map is that the Gobi is only convenient for those grassland tribes to go to the battle, and it is not convenient for large armies like the farming people in the Central Plains to go to the battle.

This desert not only has wind and sand, but also lacks water resources. It would be difficult to find the water source without local people as guides. If there is a water source problem, it may be wiped out.

Therefore, these two desert terrain directly led to a natural barrier between the northern desert and the southern desert. However, this barrier is not a huge obstacle for the grassland tribes, but for the farming people, these two huge deserts are a huge obstacle.

Therefore, even though Zhu Di fought to the banks of the Onon River and had already fought to the side of Hulan Hushuwen, he still could not drive out all the Oirat coalition forces. The Oirat even finally came back to life. The reason was that the supply line was too long, and Zeng Yunfeng offered a cruel strategy to eat from the enemy back then.

Zeng Yunfeng turned his attention to the last place again. That place was the big lake basin between Mount Altai and Yanran. That big lake basin was the last place to recuperate in the Ola tribe. There were mountains on three sides between the Bada Lake basin, but there was only one direction was the exit, but this exit was just towards the desert. This big lake basin was completely a natural place to recuperate and lick the wounds.

During the Han Dynasty, the Dahu Basin was the place where the Xiongnu Chanyu enfeoffed the Youxian King.

If you want to capture the Dahu Basin here, you must build the Junggar Basin. Otherwise, if you want to attack Mobei from the Central Plains, the strategic supply line alone can drag Zeng Yunfeng to death.

This is also one of the reasons why Zeng Yunfeng wanted to control the Western Regions. The route from the Central Plains was inconvenient, so the supply line was circled in a big circle. However, it was said that he had to walk the current half nmg map and add half Mongolia map, and the supply line was so long that it was so devastating.

However, from the Zhungeer Basin in the Western Regions, it can cross the Altai Mountains and go straight to the Dahu Basin. The army attacking Yanshan can form a force of attack on both sides.

At that time, you can truly rule this grassland, leaving the grassland people with no way out.

Of course, if the Mongols really made up their minds to go north, Zeng Yunfeng would decide to let them go. At that time, it would depend on whether God could let them survive. The northward weather would become colder, and Zeng Yunfeng would not lose his troops and fight to the north.

In those places, there are basically more than the temperate areas, and the annual precipitation is also very low, so large-scale nomad groups are basically impossible to form. Some places have even been involved in the Arctic Circle. The weather is extremely cold, and when entering the Arctic Circle, there are even polar day and polar night. Most people go there to live there, purely seeking death.

In this era, forests, mountains, rivers, and oceans are not as beautiful as those felt by later generations.

Whether it is forests, rivers, or mountains and rivers, most areas are still wilderness and even places that have not been opened before.

There are many leeches and mosquitoes in the rainforest in the south, and wild animals are rampant in the mountains. The reason why Li Bai was unable to do the Shu road was difficult to experience such pain personally.

It was only because the Song Dynasty moved south and the Jiangnan region was developed, so the Jiangnan region was gradually suitable for survival. However, in this era, going north to those areas is simply undeveloped. It would cost a lot to bloom there.

A large part of the reason why the Ming Dynasty perished was that the border peace had not been resolved.

The demise of many Central Plains dynasties has a great relationship with border peace. The combined external and internal factors may greatly paralyze the entire country.

The Great Wall needs to be built, especially at this time, even if it can resist the invasion of grassland people for a certain period of time, it cannot resist every point because the border front is too long.

Zeng Yunfeng looked at the map and his eyes fell on several points.

The first is the Hexi Corridor, the second is the Helan Mountain, Langshan, Yinshan Mountain and Yanshan Mountain next to the Hetao Plain.

The Yellow River has many harms, and only Hetao is rich. From Helan Mountain, Langshan, Yinshan, and Daqingshan Mountain, several mountains surrounding the Yellow River, forming several small plains, but these plains have become pastures for grassland ethnic groups to raise horses.

Once the grassland people control this place, the consequences will be very bad. Once the grassland people control this place, it will be a huge threat to the Central Plains dynasty.

When Xixia controlled Helan Mountain, it established the Xixia regime there. The Yinshan area is a little eastward to the present Datong and Zhangjiakou.

There are also two small plains north of Datong and Zhangjiakou, which are also suitable for grazing, which poses a huge threat to the entire Central Plains region.

Similarly, further upstream of the Yellow River is the Hexi Corridor. If you control this place, you will strangle the passage and throat between the Western Regions and the Central Plains. This place is too important and too difficult.

Several Hetao Plains are several isolated places. It is difficult to connect either the desert or the desert in the middle, which also makes it difficult for the Central Plains people to control this area for a long time.
Chapter completed!