Yuzhou, Yanzhou, Xuzhou, Yangzhou Jiangbei, these states and counties are all plains, and these years have been transferred to the strong, has fallen into a situation where there are no soldiers to defend.

Jiang Ji believed that if these states and counties were forcibly defended, it would be very difficult to mobilize troops and horses, and the defensive line would be too long.

Yuzhou, Yanzhou, Xuzhou, Yangzhou, several states and counties need to be defended, and the troops are simply not enough, so they forcibly defend, that is, the east wall is demolished to make up the west wall.

The east is defended, the west is not defended, the west is defended, and the east is not defended.

Moreover, the Han army has cavalry, advisers are like clouds, fierce generals are like rain, Wei is currently unavailable, and these places are all plains, and it is impossible for Wei to win when fighting against the Han army.

Forcibly defending these places can only be a waste of troops and sent to the Han army to kill.

At that time, the soldiers and horses were consumed, not only Yuzhou, Yanzhou, these places could not be defended, and even the land of Hebei could not be defended, because the soldiers and horses were all fought with the Han army, even if the four states of Hebei had the Yellow River natural danger, there were no soldiers and horses available.

Therefore, in the face of the current situation, Jiang Ji put forward a proposal to move north.

Abandon the land south of the Yellow River, and move the soldiers and horses and the people to the four states of Hebei north of the Yellow River.

The four states of Hebei are Youzhou, Qingzhou, Bingzhou, and Jizhou.

Speaking of this, many people can't help but wonder, Qingzhou was a Shandong region in later generations, didn't it belong to the south of the Yellow River, and how did it become an area north of the Yellow River?

Speaking of which, we have to talk about the Yellow River.

As we all know, the Yellow River is the birthplace of Chinese culture and the mother river of the Chinese nation.

It's just that this mother has a little bit of a bad temper.

Due to the sand and siltation of the Yellow River, the changes are very frequent. The Yellow River is known for its "good silting, good decision, and good migration", and has always had the saying that "two breaks in three years, and one diversion in a hundred years".

Every time the Yellow River bursts and diverts, it brings endless disasters.

The Yinchuan Plain in Ningxia in the middle reaches and the Yellow River in the Hetao Plain have changed many times, but the most influential is the lower reaches of the Yellow River.

According to statistics, in the thousands of years before 1946, the Yellow River burst and flooded 1,593 times, and there were 26 major diversions. Its downstream river channel is diverted to the northernmost Jinghai River, out of Dagukou, and the southernmost through the Huai River, into the Yangtze River.

The lower reaches of the Yellow River are like the pendulum of a clock, swinging to the north and south from time to time.

To the north, the Yellow River flows through the northern part of Qingzhou, and the river flows into the Bohai Sea.

The Yellow River swings south, and the Yellow River course passes through the south of Qingzhou and joins the Huai River and the Yangtze River.

For a long time before Wang Mang, the Yellow River was in a state of southward swing, that is, from the south of Qingzhou, through Xuzhou into Huai and Si.

However, in the Wang Mang period, the Yellow River swung northward again, forming a relatively stable channel into the Bohai Sea. It was precisely because of this diversion that a large amount of land was flooded, which directly led to the complete collapse of Wang Mang's regime.

For the next thousand years, the course of the Yellow River has been in a state of northward swing and has not changed much.

However, in the past few years, the Yellow River has swung south, resulting in Qingzhou being geographically located north of the Yellow River.

However, this time, the state of the Yellow River in the south swing only lasted for more than 20 years, and then it swung back to the north, and there was no too serious flooding.

It is precisely because of the last Yellow River south swing that the people now habitually count Qingzhou into the north of the Yellow River.

However, at present, Qingzhou is located in the south of the Yellow River, and the four prefectures of Hebei are just general names and do not matter.

Although Qingzhou is now located south of the Yellow River, there is no natural danger of the Yellow River, but there is Mount Tai in Qingzhou, and it is a peninsula area, so it is much easier to defend than Yanzhou and Yuzhou.

In addition to Qingzhou, the rest of Jizhou, Bingzhou, Youzhou are located in the north of the Yellow River, and there are Taihang Mountain, Luliang Mountain, Taiyue Mountain, easy to defend and difficult to attack, Youzhou has Yanshan as a barrier, and Jizhou has the Yellow River as a natural risk.

They are all easy to defend and difficult to attack.

At that time, the Wei State retreated to the four states of Hebei, relying on the natural danger of the Yellow River and the steep mountains of each state, it could deal with the Han army, and it was relatively easy to defend.

Jiang Ji's strategy is not a strategy, to put it bluntly, it is just to abandon the car to protect the handsome, the strong man to break his wrist, and stop the loss.

Forcibly going to Baoyu Prefecture and Yanzhou may face the danger of annihilating the country, abandon the land south of the Yellow River, retreat to the four prefectures of Hebei, shrink the battle line, concentrate troops, and there is still room for maneuver.

Wei is like a patient with a serious disease in both legs, and if he wants to live, he must have his leg amputated. But if you amputate your leg, you will be paralyzed, and now it depends on Cao Rui's reluctance to cut off his leg.

After listening to Jiang Ji's words, Cao Rui shook his head without thinking about it and said: "If you retreat to the north of the Yellow River, you will have to give up Sili, Yuzhou, Yanzhou, Xuzhou, Yangzhou Jiangbei, and half of the territory of the four states."

And these places are the starting places of Emperor Taizu, and it took countless months to get a city and a place, if I lose it, what face will I have to see his old man in the future? ”

Coincidentally, the territory that Jiang Ji advocates giving up at present is still the place where Cao Cao started, from the ten years after the princes fought against Dong to the decisive battle with Yuan Shao.

Yanzhou is the place where Cao Cao was founded, when Lu Bu and Chen Gong invaded Yanzhou, Cao Cao only had three cities left, in order to keep Yanzhou, how much hair did Cao Cao have white?

And it was even more difficult to fight Xuzhou, several expeditions to Tao Qian, attack Liu Bei, Lu Bu, and slaughter all the people of Xuzhou before taking it.

The lands north of the Jiangbei of Yuzhou and Yangzhou were also won little by little after several years of fierce battles with Yuan Shu.

It can be said that Cao Cao spent countless energy for these territories, and if he was forcibly seized, there would be nothing to say. But if he takes the initiative to give up, what face will he Cao Rui have to see Cao Cao in the next hundred years?

Jiang Ji arched his hand and said: "Your Majesty, when the interruption continues, you will suffer from its chaos, if you forcibly go to protect Yuzhou, Yanzhou, not only can not keep these territories, but in vain to consume soldiers and horses, when these soldiers and horses are gone, how can the land of Hebei be preserved in the future?"

And we don't want to give up all the land south of the Yellow River to Shu, Zhuge Liang attacked Jiangxia, in addition to wanting to march from Jiangxia to Yuzhou and Yanzhou, but also to cut off the connection between our Wei State and Eastern Wu.

We can give Yangzhou and Xuzhou to Jiangdong, on the one hand, we can strengthen Jiangdong's strength, on the other hand, we can also attract the attention of Shu, let Jiangdong resist Shu, we can take the opportunity to recuperate, strengthen our strength, and wait for the times to change. ”

"Enough Jiang Ji!" Cao Xiu was furious when he heard this, pointed at Jiang Ji and scolded: "Jiang Zitong, how difficult was it for Emperor Taizu to start a business back then? It took a lot of effort for these states and counties to come down. Now that you are persuading Your Majesty to give up these territories, what are you thinking about? ”

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