For the Western Wei State, the best result was to be able to incorporate the Western Army, but now that Sun Kewang has wandered into Guizhou, Gao Yihuan can only accept the fact that he is temporarily unable to exterminate the Western Army.

One of the greatest historical achievements of the Ming Dynasty was the development of the southwest.

Although the Central Plains Dynasty also controlled the southwest, but only nominal control, did not change the population structure of the southwest region, the Ming Dynasty through several wars, quelled the Tusi rebellion, weakened the power of the southwest Tusi, and moved a large number of Han people into the southwest, laying a solid foundation for the Central Plains to control the southwest.

In the Tang Dynasty, the southwest was the Nanzhao State, and in the Song Dynasty, it was the Dali State, which was not the regime of the Han people.

Although the territory of the Yuan Dynasty was large, the Han people did not go out, on the contrary, many places were occupied by the Semu people brought by the Meng Yuan, bringing the Green Religion, so that the Han people continued to shrink inward in the late Tang Dynasty.

The situation of the Han people's inward shrinkage and withdrawal of influence from the surrounding areas was gradually reversed during the Ming Dynasty and began to continue to expand outward.

In fact, the Ming Dynasty also changed the trend of the Central Plains Dynasty shrinking inward since the late Tang Dynasty, and turned outward to expand to open up the southwest and immigrate to Liaodong, which are the two major achievements of the Ming Dynasty.

In addition, because of the growth of population, the internal land contradiction has intensified, prompting the people of the southeast coast to spontaneously go to the South Seas, and the Han people are expanding their living space from three directions.

Looking at history, China's successive dynasties have always fallen into a cycle of dynastic unification, population growth, land annexation, intensified contradictions, dynasty collapse, and then wars reduced population, land contradictions weakened, and new dynasties were unified again.

The West's solution to this problem is to expand outward, and the landless peasants go overseas to colonize, alleviating internal contradictions and gaining more resources for the country.

China is limited by the terrain, the grasslands and deserts in the north are not suitable for farming, the west is surrounded by mountains and the Gobi, and only one Hexi corridor is connected to the outside, so the Han people are trapped in the Central Plains, so they cannot direct the contradictions to the outside.

After the Song Dynasty, with the development of navigation technology, the Central Plains Dynasty had an additional way out, but it was bound by the understanding that China was in the center and all directions were ruined, and the successive dynasties regarded the surrounding areas as barbaric and dismissive.

The Ming Dynasty did not realize this, but continued to seek solutions from within, and the contradiction between population and land made the Central Plains Dynasty miss a good opportunity for overseas expansion.

From the three routes of the Ming Dynasty's outward expansion, the development of the southwest and the relocation of the people into Liao, all of which were led by the imperial court, and only the Nanyang was not supported by the imperial court, we can see the difference between letting knowledge.

Although the southwest and eastern Liaodong are frontier lands, they are China, but Nanyang is completely wild.

However, because these wild places in Nanyang are far away from China, the level of civilization and science and technology is far behind China's periphery, and their production capacity and organizational capacity are extremely low, and there are many small countries and many tribes, which is undoubtedly very good to open up the situation.

Xiyi is not far away, and a few hundred people can control a vast area, and if there is the support of the imperial court, there is no reason why the Han people cannot gain a foothold in Nanyang.

Now with the decline of the Ming Dynasty, Liaodong fell into the hands of the Manchu Qing Dynasty early, and the strategy led by the Ming Dynasty government to open up the Northeast completely failed, and more than 3 million Liao people became the ghosts of the Manchu Dynasty, and the survivors were also reduced to slaves.

Due to the policy of forbidding the sea, the Han people who went to Nanyang were regarded as sea bandits, and were repeatedly slaughtered in Nanyang, and suffered heavy casualties in Luzon.

The southwest also because of the collapse of the Ming Dynasty, Tusi rebelled again, and Yunnan has broken away from the Central Plains Dynasty.

At this time, the influence of the Han people began to shrink again, and all three roads were blocked.

Now the Western Army has entered Yunnan and Guizhou, to a certain extent, to benefit the Han regime's control of the southwest and preserve the achievements of the Ming Dynasty's development of the southwest for more than 200 years.

At this time, the Wei army was unable to exterminate the Western Army, and after the Western Army poured into Yungui, it would immediately become the most powerful force in the Yunnan-Guizhou region.

Sun Kewang is good at fighting local tyrants and eating big households, as long as he gets through the initial difficult period, he can gain a firm foothold in the southwest and establish a Han separatist regime.

In the short term, the Western Army will inevitably threaten Sichuan, but in the long run, Sun Kewang occupies Yungui, and the development of Yungui will definitely accelerate the sinicization of Yungui.

Therefore, after Gao Yihuan recognized the fact that there was no way to take Sun Kewang at present, he decided to agree to Sun Kewang's condition of becoming a vassal and form an alliance with Sun Kewang.

Although this was Sun Kewang's strategy to delay the army, Gao Yihuan believed that when he really agreed, Sun Kewang would definitely be willing to attach himself to the Western Wei State and restore his strength with the help of the Western Wei State.

Although the southwest is now in a vacuum, it is under the threat of the Ming army and the Wei army after all, and the western army must choose the good side if it wants to do something.

Zhang Xianzhong, Li Zicheng and others dealt a heavy blow to the vassal kings of the Ming Dynasty and the gentry and landlords, and they were naturally opposed to Nanjing politically, which determined that he was a hot face to stick to the Ming Dynasty, and Nanjing would ignore him, so he had to choose the Western Wei Dynasty.

In this way, Gao Yihuan was able to obtain the copper mines of Yunnan and Guizhou, and at the same time, he could also use Sun Kewang to contain Nanjing.

In order to avoid the future when the Western Wei Dynasty was strong and the Ming and Qing dynasties were weak, Nanjing once again moved towards a union with the Qing Dynasty to avoid the embarrassing situation that the Western Wei State had no helpers.

Of course, in this way, Sun Kewang will inevitably become bigger, and it is not impossible to get rid of the Western Wei Dynasty in the future.

But now that Gao Yihuan can't help Sun Kewang, he doesn't need to think about whether Sun Kewang will become bigger, but needs to consider whether he should take what he needs right now.

Stabilize Sichuan first, reduce Sun Kewang's threat to Sichuan, and at the same time obtain copper mines in Yunnan and Guizhou, so that the Wei army has enough copper to realize the transformation of weapons, which undoubtedly echoes Gao Yihuan's interests.

For a variety of considerations, Gao Yihuan decided to agree to Sun Kewang's conditions, but Sun Kewang still recognized this condition, so he didn't know.

At this time, after the Western Army withdrew from southern Sichuan, the Wei army quickly controlled all parts of eastern and southern Sichuan, but such as Shizhu and Banzhou, as well as several prefectures in southwestern Sichuan, the Xuanwei Division, the Pacification Division, and the Recruitment Division, were still under the control of the Ming army and Tusi.

Gao Yihuan did not immediately deal with these Ming troops and Tusi, because most of the places they were in were in the mountains, and they could only slowly divide and disintegrate, and it was difficult to decide in a battle.

At the end of October, after the scout reported that Sun Kewang captured Guiyang and the main force moved southwest, Gao Yihuan left Wang Deren to guard Chongqing and southern Sichuan, and let Jin Shenghuan return to Huguang.

Gao Yihuan also returned to Chengdu with a large army, preparing to integrate Sichuan, but as soon as he arrived in the city, news came from Guanzhong.

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