After the hostile situation from Liaodong and Saibei was transmitted to Beijing, Emperor Chongzhen was busy transferring troops and sending generals in Beijing.

He urged Bi Ziyan, the secretary of the household department, Bi Maoliang, the governor of the warehouse of the household department, Nan Juyi, the governor of Zhili, and Bi Maokang, the secretary of the Ministry of Industry, to prepare sufficient ordnance, ammunition, food, baggage, and other materials for the possible war in the north of the country.

At the same time, the Jianyu army led by Huang Taiji himself had also arrived at Chaganhot, where Horqin is now stationed on the left flank.

Chaganhot, also known as Chahanhot, was once the king's tent when Lin Dan Khan of Chahar first ascended the throne.

Later, the Jianzhou Jurchens rose and continued to expand westward, and Lin Dan Khan was invincible, so he had to abandon this place and migrate westward again and again.

This grassland became the territory of the Horqin people.

Among them, Chagan or Chahan means "white" in Mongolian.

Haote, on the other hand, means "station" or "city" in Mongolian.

Therefore, Chaganhot means white station or white city in Mongolian.

This is also the origin of the name Jilin Baicheng in later generations.

In the autumn of the first year of Chongzhen, in order to avenge his son Wu Keshan, the left-wing Horqin Taiji Zhaisang, with the support of the Jin State after the establishment of the captivity, raised an Eastern Mongolian coalition army and went south to conquer the Karaqin tribes, but returned defeated.

At the beginning, the Bahrain, Onniut, Zalut and other tribes that went together to "take advantage of the fire to rob" all suffered heavy losses.

Among them, the two divisions of Ao Han and Naiman were uprooted and completely disappeared in the steppe of 30,000 households in Eastern Mongolia or the left wing of Mongolia.

After returning from this defeat, the left flank Korqin Taiji Zaisang hurriedly led the rest of his troops to migrate north.

He left the Baiyintaohai area south of the Nerit River and north of the Xilamulun River, and retreated to Chaganhot in the area of the Huolin River on the eastern edge of the Horqin Grassland to recuperate.

Chaganhot, to the west to the north is the Harawen Mountain, that is, the remnants of the Great Khing'an Mountains, is a shallow hilly area, to the east to the south is also a vast plain.

Although Taiji Zhaisang, the left wing of Horqin, who moved north to Chaganhot, lost a large number of people and livestock, its young and strong cavalry did not suffer much loss, and it was still a relatively powerful part of the Horqin grassland.

After stationed in Chaganhot, the department of Zhaisang quickly gained a firm foothold under the strong support of Huang Taiji, and at the turn of the spring and summer of the second year of Chongzhen, it was rewarded by a large number of people and livestock given by Huang Taiji after returning from the northern expedition.

On top of the alliance presided over by Huang Taiji himself, Zhaisang, who was Huang Taiji's eldest brother and father-in-law, was named the Baylor of the left-wing Horqin by Huang Taiji, the "Emperor of the Great Jin Dynasty".

Up to now, in just a year or so, the left wing of Horqin has quickly absorbed a number of small tribes in the surrounding area, and has become one of the most powerful Mongolian tribes in the Chaganhot area.

On the Chaganhot grassland in late September, the autumn leaves are blood-red and the autumn grass is withered and yellow, which is a scene of slaughter in late autumn.

In the heart of the Chaganhot steppe, there is a hill called Baolawendu, which is now the location of the big tent of Korqin's left-wing Bel Borzigit Jaisan.

Baolawendu, also in Mongolian language, means purple hill.

Located at the eastern foot of the remnants of the Haravin Mountains, there are shallow hills, large forests, and dense rivers and lakes, the most famous of which is Lake Sarana (the moon bubble of later generations), and a large flat grassland all the way east.

At noon on September 21 in the second year of Chongzhen, Baolawen was blue and white, and the autumn was high and cool, and Huang Taiji rode on a group of high-headed horses with white bodies, standing on a hill, looking at the south thoughtfully.

The endless prairie is occasionally dotted with red and yellow forests, and blue and black lakes, which are refreshing and heroic.

Huang Taiji's mount was followed by a group of Baylors, ministers, and generals who were also riding tall horses.

Among them, in addition to the high-level officials such as Mang Gurtai, Abatai, Haoge, and Yuetuo, there are also Oba Khan of Horqin, Horqin's left-wing Bel Zaisang, the right-wing Bel Kongor, and the eldest son of Chechen Khan from Mobei's Transkhalkha Department, Babudaiji.

"The autumn wind is blowing and the white clouds are flying, the grass and trees are yellow and the geese are returning to the south! At this time, the autumn horse fat on the prairie is a good time for my Dajin Eight Banners to ride horses and whip up the Mongolian athletes to attack and fight! ”

To say that Huang Taiji is indeed a character.

Although this person grew up among the wild and barbaric Jurchens, he has been studying diligently for many years, and is not only skilled in arching horses, but also excellent in resourcefulness.

In addition to the language of the Jurchens, they are also proficient in Mongolian and Chinese.

"Your Majesty's open-mindedness is more than that of the Han Dynasty back then! The minions admire it so much! ”

Huang Taiji finished the poem in Chinese on a horse, and Fan Wencheng, who was in the crowd a few steps away, understood Huang Taiji's intentions, so he immediately slapped a sycophant.

And the reason why Fan Wencheng said this is because the two sentences of the poem recited by Huang Taiji are the first two sentences of the autumn wind speech written by Emperor Liu Che of the Han Dynasty.

After Fan Wencheng finished speaking, Huang Taiji saw that there was a bosom friend in the crowd behind him, and he was happy in his heart and laughed.

The conversation between Huang Taiji and Fan Wencheng was rarely understood by others, and they didn't know why the Great Khan was laughing.

Huang Taiji laughed for a while and then stopped, then turned his horse's head and said to the people in front of him with a heroic expression: "Now I have 100,000 iron horses from the Dajin Kingdom, and I will once again join forces in the grassland with the Mongolian left wing departments, and the military power is unprecedented!" Today, I swore with you that if I can't destroy Lin Dan and break the Southern Dynasty on this trip, I will never collect troops and return to the east! ”

Huang Taiji said this heroically, looking at everyone, it seemed that he was waiting for everyone's worship or cheers, but at first glance, Mang Gurtai and Abatai from the expedition did not say a word, and did not react at all.

Huang Taiji saw that the two of them did not speak, and he was not happy in his heart, but at this time, he saw his eldest brother and father-in-law, Korqin Left Wing Beile Zhaisang, suddenly came out of the crowd, then turned over and dismounted, saluted a thousand times, knelt on one knee, and then said:

"Great Khan! Chahar's Lin Dan Hudun Rabbit is indeed the old enemy of Dajin and the Eastern Mongolian tribes, but if the Great Khan really wants to attack the Southern Dynasty on this trip, why should he make a detour of thousands of miles?!

"Four hundred miles to the south, after crossing the Xilamulun River, it is the place where Burhatu of the Karaqin tribe is stationed in the pasture. This Burhatu defected to the Southern Dynasty and pretended to be Kundulun Khan, not only with Korqin as deep as the sea, but also willing to be the barrier between the Southern and Northern Dynasties, and the enemy of Dajin!

"With 100,000 iron cavalry under the command of the Great Khan, plus tens of thousands of soldiers and horses from all parts of the Mongolian left wing, if you can go south in one fell swoop from here, it will be easy to get rid of Karaqin!

"Karaqin is removed, then the northern barrier of the Southern Dynasty Jingshi is lost, the Great Khan and my left-wing Mongolian iron cavalry, and then from Karaqin to the edge of Jizhen, the distance is shortened by thousands of miles, wouldn't it be more time-saving and labor-saving?!"

Of course, Zhaisang's words are selfish, but what he says is also right.

Nowadays, the southern Mongolia where Chahar Lindan Khan is located is nearly 3,000 miles away from Baolawendu, and there is a Gobi Sea in the middle.

If he could go directly south from Baolawendu and destroy the Karaqin tribe that refused to belong to the Houjin State by the way, it would not only be a good thing for Horqin, but also a good thing for the Jianyu army led by Huang Taiji.

Therefore, after Horqin's left-wing Belle Zaisan finished saying this, Yue Tuo, the young banner lord who was deeply admired and respected by Huang Taiji, rode on his horse and bowed to Huang Taiji and said:

"Great Khan! What Jaisambel said is right! If I can conquer Karaqin this time, accept the Karaqin people as guides, and then go straight to the edge of Jizhen, it will be difficult to break the Southern Dynasty! ”

Hearing what Yue Tuo said, Huang Taiji thought for a while, nodded slowly, and said: "In that case, Jaisangbel and Yue Tuobele, before sunrise tomorrow, take your two men and horses as the vanguard and go south to Ulan Hada!"

"If the Karaqin people are unprepared, they will go straight to annihilation, and if the Karaqin people are prepared——, then we will discuss the strategy after our army arrives!"

Huang Taiji knew that what Zhaisang and Yue Tuo said was reasonable, if they could destroy Karaqin, they would not only be able to subdue all 30,000 households of the entire Mongolian left wing, but also completely open another convenient passage to enter the Ming Dynasty in the future.

It's just that since Karaqin received a large amount of ordnance, materials, grain, and grass from the Southern Dynasty, it has successively recovered many small tribes south of the Xilamulun River, and its overall strength is not what it used to be, and it is not something that can be conquered casually.

Early the next morning, the cold wind was blowing strongly on the Chaganhot grassland, and the white dew turned into frost, and Zhai Sang led the 7,000 Horqin left wing cavalry gathered from east to west, and the camp went south first.

In accordance with the order of the current Tiancong Emperor Huang Taiji, Beile Yuetuo, the owner of the Red Banner of Jianlu, led the fifty Niu Lu with the Red Banner under his command, closely following the Horqin cavalry of the Zhaisang Division, and quickly marched south.

Soon after they left camp and went south, the Chaganhot steppe woke up from its slumber, and the smoke rose and the army gathered around Baolawendu, and then when the sun rose and the hoarfrost disappeared, a group of cavalrymen galloped south with a shouting of joy.