It is said that since Sun Chengzong led several large armies to repel the combined forces of the Jianyu Yellow Banner and the Horqin Mongols in Bagua City near Duolunuoer, the situation in the north of Gyeonggi and outside the border of Jizhen immediately changed.

Huang Taiji, who retreated from Juyong Pass to Monan, basically lost the opportunity to turn the tables in Monan after the defeat of the Yellow Banner army under Haoge's department.

Although Sun Chengzong led the army to repel only a division of the Eastern Road of Jianlu, it was of great significance, not only to maintain the security of northern Gyeonggi, but also to make the Mongolian tribes such as the Karaqin tribe Kundulun Khan Burhatu who settled in Ulan Hada City, as well as the Kulun tribe and the Duolun tribe, secretly rejoice in the original choice.

It was after this battle that the Karaqin Division, the Kulun Division, and the Duolun Department immediately sent envoys or heirs to the Ming Dynasty to participate in the Zhengdan Dynasty Meeting of Chongzhen for three years, and officially put themselves in their positions and sat on their buttocks.

In the past two years, under the pretext of defending and building captives in the north of Saibei, the Ming Dynasty has continuously sent border troops and immigrants to the north, and built a large number of permanent fortifications such as mountain cities, dungeon forts, enemy platforms, and horse retaining walls in the vast area from Rehe Fort to the three towers outside Jizhen.

With the strong support of the Governor's Office of Zhili, the Rehe Town Shoufu recruited thousands of immigrants from all over Beizhili, accepted all kinds of displaced people and sinners sent by the imperial court to arrange and resettle, and successively set up a large number of military tuns, people's tuns, mining tuns and commercial tuns on both sides of the Luan River and the Yixun River and the upper reaches of the Laoha River.

Like the merchant caravans that came to trade, the Han Chinese who came to reclaim the land, cut wood, mined, and hunted came in droves north to the original territory of Karaqin, and set up camp near the Balihan, Ning Castle, and even the three pagodas.

Such a situation naturally aroused the suspicion and dissatisfaction of Kundulun Khan Burhatu himself and the Taiji of the Karaqin tribes.

It was only because the Karaqin tribes had offended Horqin in the north before, and the Jin State behind it was too deep and too deep, and now they have to rely on the Ming Dynasty in all aspects to survive on the Saibei grassland, so they didn't dare to turn their faces.

However, it was precisely because he was dissatisfied with the continuous advance of the Ming official army to the north, so when Sun Chengzong faced the main force of the Jianlu East Road army with the yellow flag near Duolunuoer, Burhatu used the excuse of guarding against the remnants of the Horqin people in the north, and always took the main cavalry force of Karaqin to garrison the area of Ulan Hada Mountain City, and did not go south.

The thought contained in this is, of course, to wait and see the outcome of the battle between the Jurchens and the Ming Dynasty.

If Huang Taiji's Jianyu army went west to conquer Mo Nan and then entered the pass to defeat the Ming Dynasty, then he Burhatu would of course have to reconsider the choice of the Karaqin tribes.

This is also human nature.

In this world, there are no eternal friends and no eternal enemies, only eternal interests.

Although Kundulun Khan Burhatu had never heard of this phrase, as the leader of the Karaqin tribes, he understood the same thing very well.

Fortunately, Sun Chengzong's army relied on the preset fortifications near Duolunor, not only repelled the attack of the army of the Yellow Banner of Jianyu, but also captured a large number of Jianyu heads in the pursuit of victory.

At the same time, the news that Huang Taiji was defeated at Juyong Pass and returned to Mo Nan soon spread to the mountain city of Ulan Hada, Kundulun Khan Burhatu and his subordinate Taiji, and only then did he die of the idea of starting anew.

The performance of Kundulun Khan Burhatu, as well as the signs that the main cavalry of the Karaqin Department did not go south to help in the battle, naturally aroused Sun Chengzong's suspicions.

So, as the supreme commander of the Ming Dynasty in Saibei, Sun Chengzong immediately made a decision after repelling the army of Jianlu with the yellow flag, on the one hand, he quickly sent the main cavalry under his command to pursue the defeated army of Jianlu to the west, and on the other hand, immediately in accordance with the will of Emperor Chongzhen, he led the Jizhen border army under his command to the north of Ulan Hada City, and went to meet with the Kundulun Khan Burhatu of the Karaqin Department.

The main purpose of the division was, of course, to prepare an ambush on the grassland on the north bank of the Xilamulun River, that is, on the road for the return of the Jianyu army to the hinterland of Liaodong.

However, there is also the meaning of stabilizing or deterring the hearts of the people of the Karaqin tribes.

This secondary purpose, of course, has been brilliantly accomplished.

As soon as Sun Chengzong led the army that had won victory in Duolunor to the outside of Ulan Hada, Burhatu immediately led the crowd to greet him, and all the arrangements and arrangements made by Sun Chengzong were forbidden and obeyed.

All the previous suspicions, dissatisfactions, complaints, and doubts disappeared after Sun Chengzong led his army to Ulan Hada on the banks of the Yingjin River.

However, it is a pity that the main purpose of Sun Chengzong's trip has failed.

Neither the Jianlu army led by Huang Taiji, nor the Jianguo army led by Abatai later, nor the Mongol servant army that retreated north with them, did not pass through the north bank of the Xilamulun River.

The cavalry squads of Karaqin and Kulun, as well as the expedition on the left side of Liaodong Town, did not collect at night, crossed the Xilamulun River, crossed the Narit River, and went more than 100 miles to the north, and there was no trace of the Jianyu army returning to the division.

On the way to lead the army west to Chahar, Huang Taiji once went south to the Xilamulun River in high spirits and came to the north of the mountain city of Ulan Hada on the banks of the Yingjin River.

At that time, he chose to take a detour to the west instead of going straight south, because he did not want to waste too much time in this area full of fortified cities, forts, and horse retaining walls.

Now, the 100,000 army led by himself failed to return, and at the same time, the hinterland of Liaodong was attacked in turn, although all this made Huang Taiji anxious, eager to put on his wings and fly back to Liaodong immediately, but Huang Taiji, who has always paid attention to strategy and calculation, knew that he would return to the division along the road to the west, and he was afraid that he would be ambushed by the Ming army and the Karaqin people.

This is what Huang Taiji did in Liaodong to deal with the Ming army, how can he not be cautious?

Therefore, since breaking through and leaving Guihua City, Huang Taiji led the remnants of the banners to quickly go north to Erenhot, and after a short rest in Erenhot, he did not return east along the way he came, but plundered and coerced the nearby Mongolian tribes, crossed the Hanhai Sea to the north, and continued to lead the army north.

In the end, under the support of the Chechen Khan of Mobei Mongolia, Huang Taiji and the remnants of his banners finally crossed the Gobi Desert in the severe winter cold despite losing a large number of men and horses.

At the beginning, there were more than 30,000 Jurchen and Mongol cavalry who followed Huangtaiji to break through to the north, but by this time, there were less than 20,000 people and horses who crossed the Hanhai Sea alive and arrived at the Chechen Khan, and almost all of them were sick and wounded.

The Mongol tribes that followed the north were also separated on the way north, and one after another led the few remaining men and horses in their headquarters without saying goodbye.

Some tribes are lost in the wind and snow and are nowhere to be found.

More tribal leaders led their troops to leave the team and defected to the other two large tribes in Mobei.

Some of them followed Lin Dan Khan's conversion to the Red Religion and moved to the northwest to join the Zasaktu Khan, who also believed in the Red Religion, and those tribes who had not converted to the Red Religion went to the Tushetu Khan.

Therefore, when Huang Taiji finally arrived and led his troops to the Chechen Khan's pastoral area, he followed all the way to the Korqin, Uzhumuqin, Zalut, and Zarat tribes that he had brought from the steppe of Eastern Mongolia.

And these Eastern Mongolian tribes who returned from crossing the Hanhai alive and leading their troops, after this battle, like the banners under the command of Huang Taiji, suffered heavy losses and suffered great losses, and all the tribes complained and urgently needed to rest.

Faced with the situation that the various departments were full of injuries and illnesses, and the horses were thinner and thinner, even Huang Taiji, who had always boasted of his great talent, had no other way than to order all his departments to rest and recuperate on the spot.

In this way, in the snowstorm in Mobei, Huang Taiji led the remnants of the banners, while stopping to rest under the help of the Chechen Khan, waiting for Abatai's troops, and at the same time sent Yue Tuo to lead some of the men and horses to brave the cold to report to the east.

Huang Taiji's decision made all the banners under his command and the accompanying Dongmeng troops endure all the hardships, but it also allowed his banners and the accompanying Dongmeng troops to avoid the ambush of the Ming army.

Therefore, a few months passed, Sun Chengzong led the Jizhen border army and the Liaozuo army, as well as the Karaqin department, the Kulun department and other Mongolian cavalry, a total of tens of thousands of horse infantry troops, stationed troops in the north of Ulan Hada Mountain City and the south bank of the West Lamulun River for several months, but finally did not get the expected results.

It should be said that nothing was achieved except for the old and weak herdsmen left behind by those tribes who were attached to the Jurchens in the area of the Xilamulun River, who were frightened to the north and moved north.