On October 26 of the second year of Yande, the news that a cavalry of the Buyeo State was advancing towards the territory of the Gongsun clan was discovered by the Wei army's secret agents.

After learning the news, Zhang Fei was very excited and immediately asked for battle.

"Please give me 5,000 cavalry, and I will definitely annihilate all these barbarians, and not a single one will be left!"

Zhang Fei used strong self-confidence to fight against the ban.

Of course, Yu Ban believed that Zhang Fei could defeat him, but no matter how he thought about it, he felt a little strange.

"No, if the Buyeo people want to support Gongsun Du, they should quickly send troops and gallop all the way here, but this group of Buyeyu people are not in a hurry at all."

Judging from the information obtained by Yu Ban, the number of troops in Buyeo is not large, and the speed is still slow to death, and the appearance of a leisurely stroll feels like it is not here to support the Gongsun clan, but like a tourist.

Yu Ban quickly came to the conclusion that the Buyeo people didn't seem to be here to support.

After thinking about it, the staff officers around Yu Ban proposed a possibility.

"It is very likely that these Buyeo people just came to watch the situation, and did not plan to really send troops, maybe they were afraid of the prestige of our Wei and did not dare to come to help, but they were confined to the alliance and had to send troops to pose to deal with the situation, and they did not dare to take the initiative to attack."

Everyone felt that this possibility was very high, and Yu Ban also felt that this possibility existed, so he didn't take the threat of the Buyeo people in his eyes.

Instead, he used this posture as a kind of handle to march into the army to defeat Buyeo.

If you dare to send troops to deal with Gongsun Du and pose a threat to the territory of our Wei State, then if I want to clean up your words, you don't want to be wronged.

What a good excuse to send troops.

And thinking about it, Yu Ban felt that since Buyeo Guo had reacted, it was not easy to say that Goguryi State, and in this way, it was very likely that the Gongsun clan asked them for help.

Well, that's an excuse too.

Yu Ban shook his head and did not agree to Zhang Fei's request to send troops.

Then, while sending people to closely monitor the movements of the armies of Buyeo and Goguryi, he continued to intensify the siege of Xinchang County.

According to the Wei Empire's understanding before the war, neither Buyeo nor Goguryi were simple and easy to destroy.

Buyeo has a population of nearly 400,000, and the population of Goguryi is only much larger than that of Buyeo.

Although these two countries cannot be compared with the Wei Empire in terms of state organization, they have the form of a formed state in every sense.

Whether it is the official system, the military system, the hukou system, the taxation system, or agricultural production, all have the foundation of a feudal state.

They had officials, a relatively mature military organization, household statistics, and a tax system based on household registration statistics, and the use of bronze or iron farming tools for agricultural production, and the basic popularization of cattle farming, which was no different from the Central Plains in all aspects.

The difference is the cultural heritage and size of the country, which cannot be compared with the Central Plains Empire by Gao Guli in any way.

Coincidentally, the same is true of Buyeo country.

These two countries are very close to China, they have copied China in all aspects, and they have unusual performances in all aspects, so Guo Peng also took into account the threat of these two countries when designing the pacification of Gongsun Du.

On the side of the couch, no one is allowed to sleep soundly.

The Eastern Han Dynasty did not have the spare strength to clean up these two countries, and these two countries themselves were also greatly threatened by the Gongsun clan and Xianbei, and their own development potential was not great.

But now the situation is different.

According to the specific analysis of the staff station, Guo Peng learned that the current situation is completely different from the situation in the late Han Dynasty.

The Guo Wei Empire was born, and Xianbei was attacked by Guo Peng for many years, not to mention the two large-scale Northern Expeditions, and Zhang Fei, the Xianbei terminator, fought endlessly at the border for many years.

In order to better combat the potential of the Xianbei people, Zhang Fei even tricked the Xianbei people to the border to fight, using extinction-like methods to eliminate the Xianbei tribe, so that the prairie on the first line of Yanchang City was almost beaten into a Xianbei vacuum by Zhang Fei.

Under such circumstances, the Xianbei tribes, who had been migrating south to the vicinity of the Great Wall since the early Eastern Han Dynasty, were forced to move north on a large scale to avoid the constant attacks of the Wei imperial army and could not continue to threaten the border passes.

Because they couldn't stay any longer, the biggest worries of Buyeo and Goguryi, who were also threatened by Xianbei, disappeared, giving them room for development.

In addition, if Guo Peng wants to sweep away Gongsun Du and occupy Liaodong, he will further eliminate their great enemy, and they will lose the biggest factor restricting their development.

Under such a situation, if Guo Peng learns from Sima Yi, ignores this difficult and bitterly cold Liaodong, and moves 300,000 Han people inward, Liaodong will inevitably become a paradise for Goguryi and Buyeo, and they will definitely occupy Liaodong for large-scale development.

There is no threat in sight in the short term, but what about fifty years from now? What about a hundred years from now?

It was the Central Plains Empire's lack of attention to the Northeast, as well as political struggles and various transportation problems, as well as the collapse of the Central Plains after the Wei and Jin dynasties, that prevented the country from being unified for 400 years.

This situation led to the fact that Goguryi had no main opponent, and after the elimination of Buyeo, Goguryi broke free from shackles and constraints, and continued to grow and develop in an incomparably superior political environment.

For hundreds of years, the Central Plains sank, but Goguryi was like a fish in water, constantly annexing surrounding countries and tribes, and the population was increasing day by day.

They even absorbed a considerable number of immigrants from the Central Plains who had fled to the Han people, and obtained advanced technology and culture, so that the productive forces became stronger and stronger, and became more and more a powerful feudal power.

By the time of the Sui Dynasty, when the Central Plains Empire was reunified, the Goguryi, which had lost its checks and balances, had become a mature feudal state, and had developed to the point where it was the hegemon of the Northeast and had 600,000 troops.

This is not an imaginary number, but a real number.

Gao Juli in the Sui and Tang dynasties was no longer a small frontier country in the Han Dynasty, but a giant beast in the northeast, a beast that was stronger than the Houjin in the Nurhachi and Huang Taiji periods.

Its various national strength indicators are no longer the data of a normal small border country, in order to resist the military operations of the Sui and Tang dynasties, it can even build its own "Great Wall of a Thousand Miles".

Military, economic, political, demographic, productive forces, all aspects have the strength to counter China to a certain extent, and the harm to the Sui and Tang dynasties is even greater than that of the Later Jin and Ming dynasties.

It was precisely because Goguryi had such strength and was a disaster for the frontier, trying to infiltrate North China and plotting against the Central Plains Empire, which caused the Central Plains Empire to be highly vigilant.

Therefore, the four generations of emperors of the Sui and Tang dynasties would mobilize the whole country many times at all costs, and do their best to carry out successive and repeated strikes on Goguryi, vowing to eliminate Goguryi.

And at that time, Gao Guli was no longer the miserable and weak appearance that Gongsun Du could clean up now.

Times have changed.

The two generations of emperors of the Sui Dynasty made several military strikes, lost hundreds of thousands of soldiers and horses, lost millions of people, and even overdrew the vitality of the Sui Dynasty.

Gao Guli single-handedly dragged down the Sui Empire.

So much so that it was not until the Tang Empire that China finally got rid of the great trouble of Goguryi.

The whole process, nearly seventy years.

The intensity of its efforts, the length of time, the fierceness of the battles, the enormity of the losses, and the twists and turns of the process are comparable to the sum of the twenty battles of Sarhu.

It's just that the ending is different.

The Tang Empire finally took over the unfinished business of the Sui Empire, and spent more than 30 years trying its best to eliminate Gaoguryi, cut off the threat, and recover Liaodong.

It is conceivable that if it were not for the continuous blows of the four emperors of the Sui and Tang dynasties and the huge and heavy sacrifices made by the people, today's Northeast may not be the Northeast of China.

He is well aware that once these small countries lose the development prospect of checks and balances, Guo will not let them continue to grow bigger no matter what, and while the strength in his hands is strong enough now, he must eliminate them, annex, assimilate, and cut off future threats.

There are some things that Guo does not dare to leave to future generations, who knows what kind of constraints they will be subjected to?

What can be done must be done, and it must not be shaken.

Annexation, assimilation, none of them is missing.

Eliminating Goguryi and Buyeo, pacifying Samhan and Haoqian, sweeping the northeast, and setting up prefectures and counties for rule and assimilation will be his plans that will never change.