At the same time, if the Yellow River and the Yangtze River really turn north and south, then there will be a rolling Yangtze River east of Tongguan, cutting the two areas of Shanxi and Hebei, and the direction of the Yangtze River will become a similar existence to the current Grand Canal.

Then, coupled with the Qinling Mountains and Huaihe River that did not change, the entire Chinese civilization will be cut into pieces of scattered fields.

This means that the formation of the natural Chu River and Han boundaries will lead to greater unification of any country or force, and it will become increasingly difficult.

The history of China will be completely rewritten, such as Sun Wu, Eastern Jin, Song Qi, Liang and Chen, Southern Tang, Southern Song, etc., which will become impossible, or if it appears, it will be very fragile.

Because the upper reaches of the Yangtze River will be under the control of the north, and once the Huai River is broken through, there will be no danger to defend.

It's not a good thing for the north.

If this is true, it is conceivable that the Yellow River and the Yangtze River, which were originally used to resist the invasion of nomadic peoples on the grasslands and deserts in the north, will become a fast passage for the other party to go down the river.

At that time, not only will there be great losses in agriculture at any time, but the national security will not be guaranteed at all.

In this case, unless the north and the Central Plains build again similar to the Hebei Great Wall of the Northern Song Dynasty, the Jin Dynasty's Guanhe defense line, which requires 200,000 elite armored elites to control the key points, and use the main wall, moat, sub-trenches, horse faces, beacon towers, border forts, and military cities to build a defense line that consumes countless money, grain and taxes in the country.

"The plains in Japan are mainly distributed in the lower reaches of the river, mostly alluvial plains, with smaller scales and larger plains including the Ishikari Plain, Echigo Plain, Oo Plain, and Tokatsu Plain, among which the largest plains are the Kanto Plain, which is the most important and fertile land in Japan."

At this time, Daoyan's eyes suddenly looked at him, and a faint smile showed a touch of intriguing expression.

After talking about the nomadic country in the north, Jiang Xinghuo's finger drew a peninsula on the sandy land and pointed at it.

Today's Volume 2 of "Theory of National Fortune" did not give everyone the shock.

Daoyan believed that if Jiang Xinghuo had no unique things of his own, he would never have said it. If that were the case, he would probably rather not say anything.

"If Jiang Sheng's theory is promoted and cooperates with his voyage to the West, it would be perfect."

The geographical environment really determines that China becomes a whole.

Seeing that the two of them had already understood, Jiang Xinghuo concluded.

Zhu Gaochi looked at his father and asked, "Does his father think Jiang Xinghuo and Jiang Lang have finished his talent?"

"In fact, what we mainly talk about is three, first, the northern nomadic countries; second, North Korea; third, Japan."

"So from the perspective of large geographical units, the Mongolian Plateau is a whole, and the middle is divided into two subunits of northern Mo and southern Mo. As he had just said, the northern nomadic states determine their nomadic characteristics by the Mongolian Plateau, and because of the two geographical units, they determine the law that they will go south when they are prosperous and go north when they are declining. This is the decisive role of the geographical environment on the northern nomadic states."

"The Mongolian Plateau is divided into southern and northern deserts!"

"The second one is North Korea."

"The overall environment of China is closed, with the desert in the north, the plateau in the west, the jungle in the south, and the ocean in the east, making China a separate geographical unit."

"It is precisely because outside that Huaxia is a separate geographical unit. Inside, the various subunits in the large geographical unit of Huaxia still have a centripetal force that moves closer to the birthplace of China, centered on the Yellow River-Huaihe-Yangtze River region."

When his father Zhu Di was exploring Mongolia in the north, he was still very young and had no experience in going deep into the hinterland of Mongolia. Although he led his army out of the Passerby, it was only within and outside the Great Wall. So he was actually not very clear about the specific geographical structure of the Mongolian Plateau, but he just vaguely believed that the north of the Great Wall was.

"Next, we will talk about two major points."

Gu Cheng shook his head slightly, and he continued: "The mountains, rivers and terrain are of course also extremely important in military terms and factors that cannot be ignored. But what this young man named Jiang Xinghuo said at the beginning is just a hypothesis that makes people feel a little interesting."

"The north of Mobei has always been the ruling center of the northern nomadic countries, with the Chanyuting of the Huns, the Turks, the Uighurs' dens, and the capital and forests of the Mongolian Khanate."

It is also the most obvious country in East Asia that geographical determinism is reflected.

Jiang Xinghuo nodded slightly, and he used his fingers to outline some images on the sand on the ground.

"And the center of the entire continent is actually the location of the current Timur Khanate, which is the 'Pangling' in the mouth of our ancient people."

But even so, it is unknown how long the utility can last.

Jiang Xinghuo said: "The first point is that the geographical environment determines the formation of a country. Now, after talking about what kind of internal and external geographical units are formed in China. Next, we will talk about what kind of internal and external geographical units are formed in the countries around China."

"As for the desert that lies across the Mongolian Plateau, and the grassland between Yinshan and Yanshan Mountain, it is the southern desert."

I can easily accept the conclusion that I am in the easternmost part of the entire known world.

"From the internal perspective, it is the sub-units within the overall geographical unit of China, which still has strong cohesion and centripetal force, and this center is the Yellow River-Huaihe-Yangtze River region."

Zhu Di did not refute the veteran's remarks, but instead nodded in agreement and said, "So far, what Jiang Xinghuo is talking about is indeed quite disappointing."

"After all, even if a person has a rich or profound knowledge, the knowledge he has is limited. Therefore, Jiang Xinghuo has already spoken so many unique contents. If he only made a temporary decision today and talked about some ordinary content, it would not be impossible to understand."

"As Jiang Lang said, the Yellow River and the Yangtze River are really precious wealth that Chinese civilization has never exchanged!"

Only Daoyan fell into deep thought at this time.

Zhu Gaoxu nodded, and Li Jinglong explained: "When the Huns were strong, they were in the north and Dingling was grazing south of the North Sea. The living conditions there were very difficult. In the Xianbei era, the Rouran people lived there. And the places south of the North Sea and north of the desert were the northern desert."

Zhu Gaoxu said first: "Nature is north of the Great Wall on the Yinshan-Yanshan line, and there are the Mongolian Plateau."

After he finished explaining, Jiang Xinghuo continued.

Zhu Gaochi said: "So, Mr. Jiang gave this example to trigger thinking: If the topographic conditions that constitute the most basic Chinese civilization change, then everything will change accordingly? It is precisely because of this that it shows that geographical determinism is meaningful."

It turns out that the reason why China became China is not only because of the well-known isolation environment in the desert to the north, the plateau to the west, the jungle to the south, and the ocean to the east.

Seeing that they had no objection, Jiang Xinghuo continued.

Now that Gu Cheng heard what Jiang Xinghuo said, he realized something.

--Japan.

Even in Jiang Xinghuo's previous life, North Korea called itself "Little China" after the fall of the Ming Dynasty. Wu Qingyuan and Wu Xichang and his son wrote "The Little China": The East is known for its small China for a long time, and it has been regarded as an internal submission. Han Xu's work that revived the East and became more prosperous than ancient times, and the so-called "China is advanced in China."

After talking about the reasons for external isolation, Jiang Xinghuo continued to talk about the reasons for internal centripetalism.

"The old minister thinks that this assumption itself is meaningless."

"Let's talk about the first one, the northern nomadic countries, what do you think about the geographical structure of the Mongolian Plateau?"

Because of this, the Ming Dynasty realized more clearly than other dynasties that this world is not small, and at least tens of thousands of miles westward cannot reach the end.

Because of this, Jiang Xinghuo's words are filled with the endless Chinese civilization, which makes people feel pride from the bottom of their hearts, and also makes Gu Cheng's blood boil!

"In the north, it is the dividing line between the monsoon-non-monsoon zone mentioned in the last class, forming the northern part of China, these two dividing lines composed of continuous mountains."

This is easy to understand. Zhu Gaoxu and Li Jinglong agreed without any hesitation.

But will Jiang Xinghuo really talk about such a boring, cliché and no practical meaning?

If it was just to let Duke Cao understand the origins of Ryukyu, Japan and other countries, it would probably really disappoint the people in the secret room.

Just as the two were pondering, Jiang Xinghuo's voice was loud and loud.

The two of them understood the word "Mongolian Plateau" in an instant, without any obstacles.

Jiang Lang has finished his talents?

"But today, at least for now, I don't feel it."

As the smartest person in this world, he can even infer the future from Jiang Xinghuo's words.

There is no doubt about this. If we do not consider the great geographical discoveries that have not yet occurred, then the Mongols' western expedition will be the most profound itinerary to explore the east and west.

"The south of the desert also includes the Hexi Corridor and Hetao Region, which are suitable for farming and peasantry. When the Central Plains dynasty was relatively weak, the nomadic Khanate could often control the entire Mongolian Plateau, such as the Xiongnu before Emperor Wu of Han, the Turks before Emperor Taizong of Tang, the Khitan who established the Liao Kingdom, etc.."

"Isn't that the case?" Zhu Gaoxu was stunned.

Daoyan has basically been confirmed. What Jiang Xinghuo wants to talk about is an important theory related to the entire spiritual outlook of the Ming Dynasty in the future!

"Interesting, linked, and completely unconventional."

"From the outside, according to the Mongols' exploration of the Western Expedition, in the world we know, China is in the eastern part of the entire continent."

Soon, a brief topographic map of China's mountains and rivers appeared on the ground.

"From the inside perspective, the Korean Peninsula has two completely different geographical subunits, namely the mountains in the north and the plains and hills in the south."

It is precisely because of this closed geographical environment that China has been able to form a sense of overall identity for thousands of years. Even if there are several troubled times, it will eventually be unified.

Well. The problem of stealing things started from then on.

Since Li Jinglong is the "Sage of War on Paper", he naturally knows the meaning of Jiang Xinghuo's words, so he sighs sincerely.

"At the same time, due to the constraints of the geographical environment, surrounding areas, such as Longxi, Bashu, and Jiangnan, are much easier to develop towards the central areas of China than to go outward. For example, Longxi is facing the Western Regions, Bashu facing Yunnan and Guizhou, and Jiangnan is facing Guangdong and Guangxi. Therefore, the natural Yellow River-Huaihe-Yangtze River region forms a geographical centripetal force."

Li Jinglong suddenly spoke.

Daoyan began to speculate that if we start from geographical determinism, as Jiang Xinghuo said, it is the basis of a "geopolitical theory", but it sounds like that.

Daoyan has already vaguely traced the purpose of Jiang Xinghuo's purpose of this class with the clues like grass-gray snakes in Jiang Xinghuo's words.

The homophonic meme is quite interesting. Zhu Di smiled and waved his hand and said, "I think it's not impossible."

"To the west, the Kunlun Mountains extending from the Pamir Mountains to the east, the plateau where Tubo was in the past, and the Hengduan Mountains where Dali Kingdom was in the past, form a continuous line from northwest to southeast, which separates the connection between China and India."

Jiang Xinghuo didn't want to talk about the things he said before.

"It is precisely because of this geographical environment that Japan's overall geographical unit is easily unified into a whole country, just like China, Mongolia and North Korea."

"The first major point is that the geographical environment determines the formation of a country!"

"That's why China has become China!"

Zhu Gaoxu and Li Jinglong, looking at the map on the sandy ground, fell into deep thought.

"From a whole, the Korean Peninsula is surrounded by the sea on three sides and is blocked by Changbai Mountain (called Taibai Mountain before the Song Dynasty), so it also forms a separate geographical unit."

More importantly, the Yellow River-Huaihe-Yangtze River region also has a centripetal force for the surrounding geographical subunits. It is precisely because of the existence of this centripetal force that the huge Huaxia region can always be firmly gathered together and become a whole.

Gu Chuang is a military general, and he has a fanatical pursuit of war, nation and glory!
To be continued...