Why didn t Liu Bei and Sun Quan develop south and occupy Southeast Asia?

Because the material resources of Southeast Asia at that time were very scarce, and the cost of occupying this place at that time was too great, neither side had such a will.

Because Southeast Asia was not the territory of the Central Plains at that time, the distance was relatively far, and they had to face Cao Cao's tiger eyeing in the north, so this was the case.

Because in ancient Southeast Asia, where the productive forces were not developed, it was very barren, and it was useless to occupy these places.

There are two reasons, one is that it makes little sense to develop southward; Second, there is a lot of miasma in the south.

01. It makes little sense to develop in the south. At the end of the Eastern Han Dynasty, it was divided into three kingdoms, which were Cao Wei, Shu Han, and Eastern Wu, Shu Han Liu Bei occupied the southwest, Eastern Wu Sun Quan occupied the south, and Cao Wei and Cao Cao dominated the north。At that time, it was mainly the Sun-Liu alliance to fight against Cao together, whether it was Sun Quan or Liu Bei, they had a large piece of land in the south, but they never touched that piece of apprentice.

The main reason for this is that Sun Liu's development in the south is of little significance, the south is not a good economic place, on the contrary, it is a barbarian land.

The Barbarian Lands need to be reopened with effort and even money, and their benefits are unknown, and no one knows whether it is good or bad to go south, so it is a risky investment. And even if there is a return, it will take a long time to see the return, this time may be fifty years, maybe hundreds of years, or even hundreds of years, such benefits are obviously not what Shu Han and Dongwu need. Moreover, there is Cao Wei in the north, and once Eastern Wu or Shu Han spend their energy and economy on the south, then they may all be attacked by Cao Wei.

02. There is a lot of miasma in the south. The second reason is that there is a lot of miasma in the south. At that time, the south was basically the kind of big forest, which was full of miasma, and human beings could not live in ** for a long time.

Miasma is a chronic poison, and there is evidence that humans who live in a miasma environment for a long time will slowly be poisoned until they die. When Zhuge Liang went south to quell the rebellion of Meng Shu and others, relevant records appeared.

Zhuge Liang's southern expedition set off in three ways, namely Ma Zhong on the East Road, Li Hui on the Middle Road, and then on Zhuge Liang's own road, the three roads finally converged in Yunnan, and then withdrew to Chengdu together. This is recorded in the history books, so it is more credible, and Shu Han and Dongwu will not engage themselves for the sake of territory. And what is the purpose of occupying territory, that is, for the food, grass, money, or culture of that place, and there is no point in a place like the South.

Sun Quan and Liu Bei only wanted to be the overlord of the Central Plains, and at that time, other places were still wild places, and they were not interested in fighting for those places, and the transportation was inconvenient at that time, so they did not develop outside.

Because the land in the south is very poor, it is useless to take it, and it will also cause a financial burden on the state, so this is not done.

Because they all want to get the Central Plains. At that time, the Central Plains region was relatively rich, and if the Central Plains were obtained, then the country would be very strong.

Although Liu Bei and Sun Quan both occupied the south, their biggest enemy was in the north, and during the Three Kingdoms period, Cao Wei, Shu Han, and Sun Wu checked and balanced each other, and they no longer had the extra troops to attack the southern separatist forces.

The development of that ghost place was so difficult that it could not be carried out on a large scale with the productivity of the Three Kingdoms era. Even Yunnan, Guizhou and Guangxi were wild places at that time, and it was not so easy to cross Lu in May.

Because in ancient times, the biggest obstacle to the development of the south was the existence of many primeval forests, and the warriors could not attack Southeast Asia through the primeval forests.

Because the south was a barbarian land at this time, they didn't know that there was such a large territory in the south, and the south was very backward, even if they captured the southern territory, it would take a long time to operate to be productive, and it would weaken the national strength, so they did not expand southward.

Because the seafaring technology was not developed at that time, it was very difficult for them to go to Southeast Asia.

Because there are many ethnic minorities living in the south, and they have to beware of the attack of the Wei State. So there was no development to the south.

Because the southern part of the country was very barren land in ancient times, and navigation technology had not developed, it did not develop in this way.

Because people in ancient times believed that the south was a barbarian land that had not been developed, most people were reluctant to develop in the south.

Liu Bei and Sun Quan did not have advanced navigation technology, could not reach Southeast Asia, and could not rule Southeast Asia.

At the end of the Han Dynasty, the world was in turmoil, and the princes and Cao Cao coerced the Son of Heaven to order the princes, occupying most of the northern region, Sun Quan and Liu Bei occupied other places, and they united to attack Cao Cao, so why didn't Sun Quan and Liu Bei develop to the south and occupy Southeast Asia? Personally, I think that the occupation of Southeast Asia requires an expedition of laborers, and the logistics supply cannot keep up, and at that time Southeast Asia had its own country, and it was difficult for Sun Quan and Liu Bei's army to win, if they developed south, Cao Cao would take the opportunity to attack, and the gains outweighed the losses.

Because Liu Bei and Sun Quan only wanted to occupy the Central Plains, and Southeast Asia at that time was still a wild land, it was difficult to establish power there.

Because at that time, these places were not considered to be the Central Plains region, and there were no good resources.

Because the southern region in ancient times was too barren, even if it was occupied, it would be a burden for them, and the gains outweighed the losses, so they did not do so.

After the death of Liu Bei of Han Zhaolie, under the management of Zhuge Liang, Shu Han was incorruptible, economically prosperous, and militarily strong. Compared with Wei and Wu, Shu Han had no advantage. However, to the southwest of Shu Han is the vast Southeast Asia.

The lands of Southeast Asia at that time were largely primitive indigenous tribes. Zhuge Liang could have conquered Southeast Asia, but these reasons hindered his development to the southwest.

First, the geographical factor. Southeast Asia borders Shu Han, with mountains and a humid climate. With ancient science and technology, it is difficult to develop vast tropical primeval forests.

Moreover, whenever the rainy season comes, the Han people are not accustomed to rainy weather almost every day. -- On one side is the water and soil, and on the other side is the people.

Second, the human factor. Because the indigenous people of Southeast Asia have different languages and ideologies from the Han Chinese, conflicts often occur. Even indigenous chieftains who had long been loyal to the Han dynasty, like Meng Huo, would rebel from time to time.

Therefore, Zhuge Liang had to "catch seven and seven rates" Meng in exchange for the trust of the Shu Han indigenous tribes. --The natives of Southeast Asia will not accept the rule of Shu Han as they did in the inland provinces.

The third is the value factor. Zhuge Liang's lifelong pursuit is to "help Han return to the capital". Therefore, when the Shu Han dynasty was strong, Zhuge Liang began to unify northern China instead of developing southwest and ruling Southeast Asia.

Unfortunately, the failure of Zhuge Liang's Northern Expedition made Shu Han no longer have the strength to develop in the southwest.

Zhuge Liang could have dominated Southeast Asia, but for these reasons, Shu Han did not continue to develop to the southwest. This is why, even though Zhuge Liang said in the book "Chu Cibiao" that "the south has been decided, and the troops are fully equipped", Shu Han did not continue to shout for the development of the southwest.

Shu Han will retain the veterans of the whole army and lead the next generation of recruits. The combat effectiveness of the Shu Han army was stronger than that led by Zhuge Liang in primitive history.

However, there is not much difference between the generals and Zhuge Liang's generals. Because Ma Chao and Huang Zhong are dead, only Zhao Yun and Wei Yan can use them. However, Zhao Yun may not be used on the front line.

Zhao Yun has a cautious personality and is similar to Zhuge Liang. Liu Bei's battle was strange. As the saying goes, like gathers like like things.

In primitive history, Zhao Yun Shentong was loved by Zhuge Liang, that is, both had a cautious side. Liu Bei must be mainly Wei Yan and other generals, and he will also promote generals Feng Xi and Zhang Nan.

Zhuge Liang is the main force of internal affairs, and the staff should be Ma Liang, a "white-eyed hero".

In terms of diplomacy, Soochow still understood that Cao Wei was the most powerful at this time. After all, the population and economic development of the north far surpassed that of Suzhou and Shuhan. Only when the two countries are added together can they compete with Cao Wei.

If Liu Bei did not go north to the Central Plains and develop southward to unify Southeast Asia, there would be no chance of victory, because Southeast Asia was still a wild land at that time.

There is certainly no chance of winning. Because Southeast Asia also has a very strong blocking force, coupled with Liu Bei's unfamiliarity with the environment, there is definitely no chance of winning.

There are odds of winning. Because of the annihilation of the shirt, the area around Shu at that time was still in the tribal period, and the conditions were backward. Shu only needs to face the challenge of nuclear collapse and control the terrain of Southeast Asia, and the surrounding aborigines can easily capture it.

Jingzhou's strategic location is important, Zhuge Liang's "Longzhong Pair" and Lu Su's "Couch Policy" have all mentioned that this is a battleground. Cao Cao has also been eyeing Jingzhou.

After the Battle of Chibi, Sun Quan's general Zhou Yu took more than a year to conquer Nanjun. Note: Both Xiangfan and Nanjun in Jingzhou are extremely important strategic locations (Xiangfan has been captured by Cao Cao). Sun Quan got Nanjun, how could he give up easily?

But the situation at that time was grim, although Cao Cao temporarily withdrew his troops, he could make a comeback at any time, and although Sun Quan got Nanjun, he was always facing the threat of Cao Cao! The pressure is not light.

Liu Bei took advantage of the merger between Sun Quan and Cao Cao to take the opportunity to obtain the four southern counties of Jingzhou. Note: The four southern counties have a large area, but the population is small, and the degree of development is also low.

Nanjun is bordered by Cao Cao's control area to the north, and the gateway to Yizhou to the west. The west can enter Yizhou, the north can lead to Xiangfan, and then the troops will go straight to Xudu.

At this time, Liu Bei borrowed Nanjun (not the entire Jingzhou) from Sun Quan, hoping that Sun Quan would assign Nanjun to himself. Sun Quan and Lu Su lent Liu Bei for the purpose of fighting Cao Cao.

It was by virtue of the geographical location advantage of Nanjun that Liu Bei made an enrollment in Yizhou and initially realized the strategic plan of "Longzhong Pair".

However, the Eastern Wu side does not understand it this way, his logic is that whoever fights down this place is who's who, and Jiangling was beaten down by our Zhou Yu, that is ours, you can use it, borrow it.

If you want to take it back, you can, you can use force again. At that time, Liu Bei did not have this ability, so he sent troops to defeat Jiangling from Zhou Yu, and Jiangling was defeated by Zhou Yu for a year, of course, it was impossible to give it up.

Therefore, the two families did not make it clear about the issue of borrowing Nanjun from the beginning, Dongwu thought it was borrowing, and Liu Bei thought it was taking. Therefore, later in the 19th year of Jian'an, Sun Quan sent Zhuge Jin to ask for Nanjun. And Liu Bei refused to return it, first, this is a strategic place, a place where soldiers must fight.

Second, this place was originally mine. Therefore, the two families stood on their own sides and wanted to seize Nanjun.

Because the strategic position of South County is very important. Jingzhou is located in the southern county, which can be attacked and defended, and it is a place where soldiers must fight, and its strategic position is very significant.

Because Nanjun is not an ordinary city, the actual control of Nanjun is equivalent to controlling the right to rule on both sides of the Yangtze River, so it will fight desperately.

Because Nanjun is a very good geographical location, whoever gets it will be good for whom, so they will fight for this place together.