After Abatai led the remnants to rush to the territory of the Chechen Khan in Mobei, Huang Taiji heard the news that he and Li Yongfang, Kong Guoer and others brought back, and knew that Lin Dan Khan had fled into Qinghai with the rest of the Chahar after all, and his heart was even more depressed.

For the conquest of the Southern Dynasty, his ambition was more inflated than that of his father, Nuer Hachi, and after he inherited the throne of the Great Khan of the wild boar skin, he set a strategy to conquer the Southern Dynasty, that is, to first collect Korea, then Mongolia, and after removing the left and right arms of the Ming Dynasty, and then attack Beijing.

And for the attack on Beijing, he also has his own long-planned strategy, that is, to make a detour to Mongolia, rather than directly attack Liaoxi.

He still has a very clear understanding of the Ningjin defense line in the western Liaoning corridor, and knows that with the cavalry and archery skills of the Jurchen Eight Banners alone, it is simply difficult to capture Yizhou, Jinzhou, Songshan, Xingshan, Tashan, Ningyuan and Shanhaiguan and other series of fortified cities and fortresses scattered between fortified cities and forts.

Where are there so many warriors in the Jurchen Eight Banners of the Dajin Kingdom that can be sacrificed?!

Therefore, since Huang Taiji attacked Jinzhou City once at the beginning of his succession to the throne in the seventh year of the Apocalypse, he basically broke the idea of breaking through the Ningjin defense line and marching into the Ming Dynasty from Liaoxi.

Similarly, from that time on, Huang Taiji pinned his hopes of entering the Central Plains and conquering the Southern Dynasties on the strategy of conquering the Mongol tribes in the south of the desert and then detouring to the south through Mongolia.

Since then, Huang Taiji has made a series of decisions based on this strategy, towards this goal, and no matter what he does, he is confident and confident.

Originally, after he succeeded to the throne, his strategy has been very successful, which also made his prestige in the Later Jin State quickly established, and his position in the Dajin State clan and the Jurchen Eight Banners is also becoming more and more consolidated.

He thought that as long as he was willing, this momentum would continue, and whether or not the Western Expedition could break the Southern Dynasty or not, at least he would be able to take Southern Mongolia.

Therefore, Huang Taiji couldn't let go of the ending of attacking the Southern Dynasty and returning from defeat, conquering Mo Nan but gaining and losing.

In particular, the failure of the grand strategy of first collecting Korea, then Mongolia, and then detouring to Mongolia to attack the Ming Dynasty made him a little at a loss for the future of the Dajin Kingdom.

For the rising Jurchens, the defeat of any major war could be a fatal wound, because they could not afford to lose.

Huang Taiji, who is the Tiancong Khan of the Great Jin Kingdom, also knows this well.

However, now that the matter has come to this, whether he regrets it at the beginning or can't let go of it, he must accept the situation in front of him, especially the various potential crises that come with it, he must also face up to and deal with it.

After Abatai fled back to the north from Monan in disgrace, Huang Taiji had no reason to stay on the territory of the Chechen Khan, and at this time, before Abatai returned, he received a message from Yue Tuo and others who went east:

The Ming armies in Dongjiang Town and Denglai Town had stopped attacking the hinterland of Liaodong, and except for Fuzhou and Odori, all other Ming armies withdrew to the original border between Ming and Jin.

This made Huang Taiji feel a little relieved about the situation in the hinterland of the Jurchen Liaodong, and he also began to concentrate his energy to finish the aftermath of the failure of this pro-expedition.

A few days after Abatai and others led their troops to the Chechen Khan's department, Huang Taiji led the remnants of his various banners and divisions to cross the frozen Krulun River to the east and set off to return east.

At the end of February, Huang Taiji led his army on a detour through the Alukorqin grassland, which later became the Hulunbuir grassland, and then marched south to the mountain city of Geljurgen near the Nawen River north of Chaganhot.

The mountain city of Gelezhulgen is located on the east bank of the Naowen River (later Nenjiang River), that is, the southwest of Duerbert Mongolian Autonomous County between Qiqihar and Daqing in Heilongjiang Province.

This mountain city, built on the mountain, is the most majestic, but it is the place where Oba Khan, the co-owner of the headquarters of the Khovenkorqin people in this era, and his tribe settled and resided.

For the northern Mongolian tribes, which are still generally in a nomadic state, the Mongols of the Horqin tribes are relatively civilized and have taken the lead in entering the stage of sedentary herding.

This is also the reason why they betrayed Lin Dan Khan earlier and chose to take refuge in the Jurchens.

Although they were Mongols like the Chahar Mongols, they settled on the fringes of the Jurchen tribes in the northeast and bordered the Later Jin state, which later unified the Jurchen tribes.

After Lin Dan Khan failed in the battle with the Jurchens, he could move westward, and he could continue to nomadize westward with the Chahar men and horses, anyway, the entire Mongolian steppe, for Lin Dan Khan and his Chahar traditional Mongols, there is no place where you can't go, and where you go to nomadism, there is no big difference.

However, the Horqin Mongols, who have been accustomed to settling down as herders, are different, they have cities, are accustomed to sedentary life, do not want to move around, and then live the traditional nomadic life of chasing water and grass.

Therefore, as early as the sixth year of the Great Ming Apocalypse, that is, the eleventh year of the Mandate of Heaven of the Later Jin Kingdom, after Lin Dan Khan led his troops to move westward, Oba, who had been swaying from side to side, also took the opportunity to decisively lead the Horqin headquarters Zhongtaiji, who lived in the area of the mountain city of Geljurgen, to officially take refuge in Nuer Hachi.

Nuerhachi once led his troops to attack the mountain city of Geljurgen, but each time there was no other way to take it except to besiege it.

Therefore, when Oba led his troops to surrender, Nuer Hachi was very happy, and not only gave Oba a granddaughter as his wife, but also made an unusual exception to give Oba the title of Tushetu Khan.

However, even so, in the original history, when Huang Taiji Xi conquered Harintan Khan, Oba Khan did not accept Huang Taiji's order to recruit.

However, this time, perhaps due to the prestige of Huang Taiji's return from the victory of the northern expedition to the savage Jurchen and the Beishan Jurchen at that time, Oba Khan accidentally agreed to Huang Taiji's order to transfer his troops to the expedition, and personally led his troops to go, but he never returned, and died under the Bauhinia Pass.

This time, on the way back to the east, Huang Taiji deliberately came to the mountain city of Gelezhuergen to stop, just to appease the people of Horqin headquarters.

Huang Taiji led the Jurchen magnates to stay in Geljurgen for ten days, first in front of the mound prepared by the Korqin people for Oba Khan, and led the crowd to solemnly pay tribute to Oba Khan's spirit in the sky, and then named Badalitaiji, the son of Oba Litaiji, as Heshuo Belle and inherited the throne of Oba Khan.

Subsequently, Huang Taiji took this opportunity to gather the Beyltaiji of the Horqin tribes, including Alu Korqin, and several Mongolian tribal leaders who had been following him unwillingly, to gather in the mountain city of Geljurgen and make an alliance again.

In this Geljurgen Alliance, Huang Taiji changed the four tribes of Horqin to the four banners of Horqin on the left and right sides of Horqin in accordance with the Jurchen Eight Banners system: the original Horqin left-wing tribe of the Zhaisang Department was the Horqin Left Banner, the original Horqin right-wing tribe of the Konggol Department was the Horqin Right Banner, the Alu Korqin Department was the Horqin Front Banner, and the Badali Department Horqin was the Horqin Rear Banner.

And they took Zhaisang, Konggol, Dalai Chuhuer, and Badali as the banner masters, and gave all four of them Heshuo Beile.

The four banners of the left and right sides of Horqin are all adapted to the Jurchen Eight Banners system, which is adapted to Niu Lu and Jia La, 300 households are one Niu Lu, five Niu Lu is a Jia La, and Wu Jia La is a solid mountain.

Although after returning from this defeat, the Horqin tribes under the command of Zhaisang, Kongguoer, Badali and others were no longer enough to gather a strong man with 7,500 households in Gushan, but at this time, no one cared about this matter, whether it was Huang Taiji himself or these newly promoted Heshuo Beile Mongolian banner masters.

At the same time, the four divisions of Zalut, Zarat and East and West Uzhumuqin, which had been saddled before and after the horse and followed the westward expedition and south, were also upgraded to the four banners, the Zalut department became the Zalut banner, the Zarat department became the Zarat banner, the East Uzhumuqin became the left banner of Uzhumuqin, and the West Uzhumuqin was the right banner of Uzhumuqin, and the leaders of the four divisions were directly named the banner owner Baylor by Huang Taiji from Taiji.

These four banners, originally weaker than the Horqin tribes, after being attached to the Jurchens, the status of the Houjin State is also relatively underground, this time, under the reward of Huang Taiji, the status has skyrocketed, except for the fact that it is not a big Baylor, that is, Heshuo Baylor, everything else is the same as the Horqin Four Banners.

However, if these newly erected Mongolian flags want to gain the status of the Jurchen Eight Banners, it is of course wishful thinking.

In the final analysis, they are just vassals and cannon fodder of the Jurchen Eight Banners, because after Huang Taiji set up these eight Mongolian banners, he not only incorporated these eight Mongolian banners into the management of the Houjin State, but also conveniently put the Horqin Four Banners under the control and dispatch of the Zhenghuang Banner.

At the same time, Huang Taiji also ordered that the Zalut Banner, the Zhalaite Banner, and the left and right banners of Wuzhumuqin, which had lost their grazing land, be moved to the former Haixi Jurchen Four Divisions on both sides of the upper reaches of the Songhua River, that is, the eastern region of Jilin in later generations, to settle and live, and let these four banners be placed under the command of the Yellow Banner for moderation and dispatch.