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After Battle of Red Cliffs, the biggest winner, Liu Bei, won like a lottery, winning Jingzhou and Yizhou, which account for one third of the world.

However, if Yizhou wants to do nothing, it must take Hanzhong from the geographical pattern.

Hanzhong, this place is very interesting.

Let's look at this name: Hanzhong, as the name implies, is the birthplace of Hanshui River. Hanshui River is easily associated with the Yangtze River basin in the south.

However, what about the province of Hanzhong? It's Shaanxi province. This is a typical northern province, which reminds people of the northern place names such as Xi and Yan 'an.

But in real geography? Hanzhong and Sichuan are in the same geographical unit, which is the west.

You see, this place in Hanzhong is linked with the north, south and west. Then why is this happening?

It turns out that Hanzhong and Xi 'an are located in the Guanzhong Plain, separated by a Qinling Mountains.

What about the Sichuan Basin where Hanzhong and Chengdu are located? There is a Daba Mountain in the middle.

If you want to enter Sichuan, you have to be close to Daba Mountain, but it is very difficult. "It is difficult to get through the road, and it is difficult to go to the sky."

The same is true of the Qinling Mountains, which is not only steep, but also stretches 1.500 km from east to west and 1.000- 1.500 km from north to south. It is very big and difficult to cross. Under the technical conditions of ancient times, it is even more difficult.

Geographically speaking, Hanzhong and Sichuan are more closely linked. Although Hanzhong belongs to Shaanxi on the map, it is actually the gateway to northern Sichuan.

From Sichuan's point of view, if the enemy occupies Hanzhong, it can easily cross Daba Mountain and attack Sichuan.

If Sichuan occupies Hanzhong, the steep Qinling Mountains in the north will become a natural barrier to prevent the enemy from attacking south.

02

We returned to the Three Kingdoms. After Liu Bei occupied Sichuan, he quickly sent troops to compete with Cao Cao for Hanzhong.

Hanzhong was occupied by Zhang Lu at that time. Both Cao Cao and Liu Bei have the opportunity to occupy Hanzhong.

Well, it's time for both sides to compete strategically.

It is difficult to defeat Liu Bei and occupy Hanzhong with Cao Cao's military strength, but it is actually possible.

Cao Cao is not the only one who is stronger than Liu Bei.

More favorable condition is that Zhang Lu, the commander of Hanzhong at that time, chose to surrender to Cao Cao instead of Liu Bei.

Therefore, Cao Cao's occupation of Hanzhong is a matter of course.

But Cao Cao did not do it. He accepted Zhang Lu's surrender, but brought Edward Zhang's family to the Central Plains. Not only that, but also brought a large number of Hanzhong people.

Cao Cao strategically abandoned Hanzhong.

Is Cao Cao stupid to give up Hanzhong, which is easy to get?

It is very easy to occupy Hanzhong and attack southern Sichuan. There is no natural barrier at all.

Giving up Hanzhong, crossing the Qinling Mountains, crossing the Daba Mountain, and trying to attack Sichuan are simply more difficult.

What does Cao Cao think?

In the Romance of the Three Kingdoms, Cao Cao abandoned Hanzhong and said a very helpless sentence: "Chicken ribs."

This novel is to show that Cao can't beat Liu Bei Group, but what? And don't want to go, finally borrowed Yang Xiu's head, down the steps for yourself.

Fiction belongs to fiction. Let's use logic to analyze what Cao Cao thinks.

Cao Cao said that Hanzhong is a chicken rib, which is tasteless to eat and a pity to abandon.

Whoever wins Hanzhong needs to solve the problem of transporting soldiers and grain in the mountains, so it really doesn't taste so delicious.

But? Hanzhong's strategic position is very important, but it's a pity to give it up.

Faced with this dilemma, Cao Cao chose to give up, while Liu Bei chose to persist.

This active strategic abandonment is Cao Cao's next big game.

03

The war at the end of the Han Dynasty was very destructive. Although Cao Wei's strength is the strongest among the three countries, it is not much stronger, especially after Battle of Red Cliffs, which is still in the recovery period.

The conditions for actively attacking and occupying Sichuan are far from perfect.

In this case, if we can't take Sichuan, occupying Hanzhong is a burden and can only add a heavy burden to ourselves. You want to cross the Qinling Mountains to deliver food and grass to Hanzhong garrison.

Moreover, even with great efforts to transport grain and grass, Liu Bei is still in danger of attacking at any time.

If Cao Cao voluntarily gives up Hanzhong, let Liu Bei occupy it.

If Liu Bei wants to attack over the Qinling Mountains, the hard work of transporting grain and grass all the way over the mountains will fall on Liu Bei.

At this time, the steep Qinling Mountains became a great assistant of Cao Cao.

In this case, giving Hanzhong to Liu Bei is the best choice.

The Qinling Mountains in the north of Hanzhong have become the natural "Great Wall" to protect the Guanzhong Plain.

Of course, Liu Bei can't be given a rich Hanzhong, so Cao Cao will withdraw all the people in Hanzhong to his side. Let Liu Bei occupy the empty Hanzhong.

For Liu Bei, there is no choice but to occupy Hanzhong, otherwise the door of northern Sichuan will be wide open and he can't sleep at night.

Liu Bei's attack on Hanzhong left a message: Men want to fight, women want luck.

Men go to war, and women have logistical support, which means they can win Hanzhong if they fight hard.

Without Hanzhong, there would be no danger in Sichuan.

04

In addition to using the Qinling Mountains in Hanzhong as his own barrier, Cao Cao has another plot.

That is, he wanted to use Hanzhong's position to trap Liu Bei in Sichuan.

Let's take a look at the geographical location of the Sichuan Basin.

It is simply the natural territory of warlords.

"If the world is not chaotic, Shu will be chaotic first." This is what I said. As long as the national strength of the central dynasty declines, the warlords in the Sichuan basin will take the lead in mutiny.

As long as you have a pass, no one will enter Sichuan.

Cao Cao thought so, and so did Liu Bei.

Liu Bei really stayed in Sichuan and became king.

Of course, Liu Bei also has his own ideas.

Without Hanzhong, there would be no Sichuan. Liu Bei fought hard to win Hanzhong. In order to keep the victory, he set the capital in Chengdu. As long as people are in Chengdu, Hanzhong, Sichuan will not be lost.

However, maintaining the strength of the group in Chengdu means that you may not be able to come out.

Why?

It was very difficult for Liu Bei to attack Cao Wei from Hanzhong and cross the Qinling Mountains. This is the reason why Zhuge Liang's six voyages to the West and Jiang Weijiu's failed.

Of course, Liu Bei didn't need to worry about this at that time, because he still had Jingzhou in his hand.

It is much easier to attack Henan from Jingzhou in the east to the north.

At that time, Zhuge Liang wrote in the famous "Longzhong Dui" which suggested to Liu Bei: "I will command a general to turn Jingzhou's army to Wanluo, and these two generals will lead the people of Yizhou to leave Qinchuan ... Think about it, the Han Dynasty will be prosperous."

It is said in this passage that Liu Bei has two strategic offensive routes, one is from Jingzhou to the north and the other is from Hanzhong to the north.

Of course, later Guan Yu lost Jingzhou, and the easy-to-attack route no longer existed.

Guan Yu's loss of Jingzhou is actually related to Liu Bei's capital Chengdu.

How far do you think Chengdu is from Jingzhou? How can you save Liu Bei if something happens to Jingzhou? When you get the news, organize the troops again. The daylily is cold.

Facts have proved that Liu Bei Group, which is far away from Chengdu, was unaware of the fall of Jingzhou.

Of course, this has something to do with Guan Yu's going north to fight without saying hello to Liu Bei in advance.

However, if Liu Bei had been closer to Guan Yu, wouldn't Jingzhou have been lost so easily?

Liu Bei, who is far away from Chengdu, is "far water can't put out a near fire" to Jingzhou.

It was because Liu Bei made Chengdu his capital that Jingzhou fell easily, which led to the Han Shu Group after him having to retreat to Sichuan.

This was set by Cao Cao for Liu Bei. Cao Cao trapped Liu Bei in Sichuan with Hanzhong as bait.

05

So, what should Liu Bei do if history can be repeated?

Hanzhong is a must. Without Hanzhong, there would be no Sichuan.

But we can't set the capital in Chengdu just because Hanzhong is hard-won.

Chengdu is deep in the Sichuan basin, with its capital in Chengdu, and then Hanzhong, which means that we have to live a small life against the barrier of the Qinling Mountains and do not intend to go out to fight.

The best capital location is Chongqing, the land of Ba County, specifically Jiangzhou.

No matter by water or land, Ba County can help Jingzhou quickly.

Chongqing is the east exit of Sichuan, and Jingzhou is the exit of the Three Gorges. Only with Chongqing as its capital can we effectively coordinate the two lines of going east to Jingzhou and going north from Hanzhong.

This coordination has two meanings. One is the actual tactical impact.

If Liu Bei makes Chongqing his capital. Then what Guan Yu did in Jingzhou will have greater influence and support, and Guan Yu may not be able to lose Jingzhou.

Even if it is lost, it is possible to get it back immediately, because it is close to the base camp. This is an influence.

What about the second impact? This is a psychological effect.

Just compare it. During the Anti-Japanese War, the people were forced to retreat to Sichuan, and they also faced two choices: Chengdu and Chongqing.

Where should the capital be? On the surface, the public security environment in Chengdu is obviously better than that in Chongqing, and the urban infrastructure is better. However, Chiang Kai-shek decided to move the capital to Chongqing, even if it had to bear more enemy bombing.

Why?

Focusing on Chongqing is to maintain a fighting posture and show the outside world that we will never give up and rush out to fight the enemy to the end whenever we have the chance.

And making Chengdu its capital is tantamount to showing the world that we should live in peace and drag out an ignoble existence if we don't fight.

Is the wartime capital Chongqing more suitable than Chengdu?

Although history cannot be assumed, we can imagine that since Liu Bei made Chengdu his capital, especially after his successor Zhuge Liang took root in Chengdu, the contradictory structure of the entire Shu-Han regime has changed.

The main contradiction is no longer the contradiction between Shu Han and Cao Wei, but the contradiction between Liu Bei Group, an outsider, and Sichuan Group, a local interest group.

Later, Zhuge Liang's six expeditions to Qishan and Jiang Wei's nine expeditions to the Central Plains seemed to be a foreign war, but to a large extent, their intention was also to deal with internal contradictions.

Everyone with discerning eyes knows that it is impossible for the Shu-Han regime to compete with the Central Plains at this time.

Didn't Su Xun in the Song Dynasty say, "Zhu Gekongming abandoned Jingzhou and went to West Shu. I know there is nothing he can do. "

Zhuge Liang gave up Jingzhou and took root in Sichuan. I knew he had no future.

Cao Cao set a trap for Liu Bei, and Liu Bei really got in.

Liu Bei Group is trapped in Pandi, Sichuan, and can no longer implement Zhuge Liang's Longzhong-China strategy.

It can be said that Liu Bei won Hanzhong and lost the world.

On this chess game in the world, Cao Cao is still better than Liu Bei.