Daning Dusi (now Chifeng, Inner Mongolia) is a strategic fulcrum fortress set up outside the Great Wall when Hongwu divided the kings.

Later, the Northern Expedition of Lanyu and Feng Sheng started with Daning Dusi.

Although it is far away, Zhu Yuanzhang saved more than 800,000 stone of grain storage through immigration, tuntian, etc., in order to run Daning, so that Daning can be self-sufficient.

As a result, Zhu Di fell in love with the strong soldiers and horses of the Daning Dusi before the Jingjing, went to backstab the king of Ning, and withdrew the Daning Dusi to Baoding after winning the world.

Zhu Di's move was justified, because after his many northern expeditions, the Northern Yuan Dynasty had already been fragmented and was not a problem.

The retreat of these border towns outside the Great Wall could reduce the economic pressure on the Ming Dynasty.

At the same time, he gave the old land of the Daning Dusi, together with hundreds of thousands of stone deposits, to Duoyan Sanwei, who accompanied Jing Nan, which was regarded as a reward for them.

Now nearly two hundred years have passed, and the Ming Dynasty's guards outside the Great Wall have long been withdrawn, and they are blind to the movements of Mongolia and Jianzhou outside the Guan.

This is also why, when Huang Taiji had no logistical supplies, he was still able to enter the fortress and loot four times, so that the Ming Dynasty finally collapsed.

However, when Chongzhen had a conversation with Liu Xingzuo before, he got the information that the Karaqin Mongol tribe entrenched in Daning Dusi was now heavily damaged by Lin Dan Khan.

The Karaqin tribe originally belonged to the right-wing Mongols, and after the Northern Yuan Dynasty recovered its vitality, it gradually invaded the territory of Duoyan Sanwei, and restrained Sanwei by means of peace and force.

However, Lin Dan Khan was forced to move westward after the rise of Jianzhou, first conquering the Tumut tribe in the right-wing Mongols, and then clashing with Karaqin again and again.

In the first year of Chongzhen, Lin Dan Khan broke through the headquarters of Karaqin again, so that now Karaqin is only left as the Duoyan Sanwei force as a supporter.

That is, the thirty-six Karaqin families led by Shu Buzhi.

Karaqin's strength was originally worse than that of Liaozhen, but now it has been weakened by Lin Dan Khan, and it is not the opponent of the Ming Dynasty.

What's more important is that the current Jianzhou is still annexing and digesting the Horqin Department, and it is very likely that there is no time to go south.

If you miss this point in time, once Shu Bu's choice is completely tilted towards Jianzhou, the entire grassland corridor will fall into the control of Jianzhou, and the northern border of Daming will never be peaceful.

And if the Ming Dynasty restores the control of the Daning Dusi and the Duoyan Sanwei, then there will be a grasp of fighting for the grassland with Jianzhou and Lin Dan Khan, and it can even continue to go north and form a pincer offensive with Liaoxi, forcing Jianzhou to retreat to Liaodong.

Thinking of this, Chongzhen no longer hesitated.

First of all, he immediately wrote a secret letter to Man Gui, asking him to quickly inform the Mongol soldiers he had subdued about the annexation of Jianzhou and Horqin.

The Horqin army was originally not very credible, but after Huang Taiji annexed his tribe, he really raised their wives and beat their children.

These Mongol soldiers already had the basis of interests to share the same hatred and hatred with the Ming Dynasty.

At the same time, he vaguely reminded him to prepare for the army.

The second is to summon He Ruzhong and Bi Ziyan, and let the two find out the recent correspondence between Karaqin and the Ming Dynasty and the grain and grass that are being hoarded in Tongzhou.

The soldiers and horses did not move, and the grain and grass went first. During the period of the Tsui Revolution, most of the tax silver transported from the south was converted into grain and transported to Jingshi.

These military rations were just enough to support the military operation against Karaqin.

Finally, Liu Xingzuo was summoned.

This person is Nurhachi's son-in-law, and his knowledge of the internal situation of Jiannu is far better than that of Dongchang.

At the same time, he also had some intelligence networks among the Han people in Liaodong, and Chongzhen hoped to learn more about Jiannu through him.

A few days later, Liu Xingzuo came to meet the saint.

His face was solemn.

"Your Majesty, before I received the decree, I had instructed my clan brothers who were still on Phi Island to contact Jinzhou Wei's internal response."

"The news they heard from Hetuara is that Huang Taiji not only annexed Korqin, but also imprisoned Amin."

"Today's Jianzhou, I'm afraid it's no longer the four Baylor discussions, but Huang Taiji alone has the final say."

Chongzhen was shocked, "How can this be?" At that time, Jiannu fled north in a hurry, which must have greatly damaged the prestige of Huangtaiji, who was the main force of the Ming Dynasty. Why did it only take a while for Huang Taiji to turn over and call the shots. ”

Liu Xingzuo said, "It is difficult for me to know the specific situation, but before Jianzhou arrived in Horqin, the clan general Abatai, who originally stayed in Hetuala, and Dolgon, who stayed in Shenyang, led troops westward. The last general suspected that he had received a secret edict from Huang Taiji. ”

Abatai was the seventh son of Nurhachi, and although he fought bravely, he had a low status and was friendly with Huang Taiji.

"Quite possibly." Chongzhen tapped the table with his knuckles, "Originally, the four major Baylors checked and balanced each other, and they were on equal footing, but Huang Taiji called his two henchmen, and he was in an advantageous position in terms of strength. ”

"If you are caught off guard, you will not dare to object to Amin who is already half an outsider."

Liu Xingzuo agreed, "The minister heard that it was his younger brother Jilharang who succeeded Amin in charge of the blue flag, so that even the old minister of Amin's father Shuerhaqi could hardly say that Huang Taiji was not. ”

"Jierharang is also a hardcore of Huang Taiji, so Huang Taiji's status in Jianzhou is higher." Chongzhen said with emotion.

"Not to mention, after disposing of the Horqin Ministry, it is just right to use the livestock farm of the Horqin Ministry to win the hearts of the people and reward the heroes. Huang Taiji really killed multiple birds with one stone this time, and the thief did not go empty. ”

Liu Xingzuo arched his hand and said, "Your Majesty Shengming, however, the minister thinks that Huang Taiji's move is like killing chickens and eggs, although it temporarily improves his own status within Jianzhou, but weakens his influence in the Manchu-Mongolian Alliance. ”

"What do you mean by that?" Chongzhen was puzzled.

Liu Xingzuo pointed to the map on the wall, "Your Majesty, please see, originally Huang Taiji used marriage to win over Korqin, defeat and annex Inner Khalkha, and appease Karaqin. ”

"The most important is Ao Han, one of the branches of the Lianchahar sect

Both Naiman tribes were protected by Lin Dan Khan's threat, and Huang Taiji at this time only needed to completely defeat Lin Dan Khan to dominate the steppe and become the Great Khan of all Mongols at the same time. ”

"Now, Huang Taiji asked Horqin to send troops as an ally, but he deliberately made it impossible to return. As a guest, he went to the Mongolian tribe as a guest, but he called for reinforcements and swallowed the host. This is a big taboo in any Mongolian tribe, who would dare to invite him to the door? ”

Chongzhen chewed Liu Xingzuo's words, "It makes sense, these tricks played by Huang Taiji seem to be clever, but they can't be put on the stage after all, and they will only make the Mongolian tribes centrifuge him." ”

"Xingzuo, if I send a general to pretend to conquer Karaqin and force him to submit to the Ming Dynasty, do you think it is feasible?"

Liu Xingzuo looked at the map on the wall, and asked in his heart, "The emperor wants to restore the Daning Division?" ”

"Hahaha, Xingzuo, Xingzuo, you are really my confidant." Chongzhen stroked his palms and laughed.

Liu Xingzuo hurriedly knelt down and said, "Your Majesty, but if you have orders, Xingzuo will never give up!" ”

"Okay, I'll fix a book, and you and I will make an envoy to Lin Dan Khan!"