On the twenty-third day of the first month of the sixth year of the Apocalypse (1626), Houjin sent tens of thousands of cavalry to attack Ningyuan, and there was a great earthquake near and far. On the 24th day of the first lunar month, the Houjin army surrounded Ningyuan, and Man Gui and Yuan Chonghuan defended the city.

The Later Jin army began to attack the southwest corner of the city, and they fired Western Hongyi cannons, wounding many of the besieging Later Jin troops. On the 25th day of the first lunar month, the Houjin army turned to attack the city wall south of Ningyuan, and they repelled it with firearms, so the siege was lifted.

Emperor Zhu Youxiao of the Apocalypse was very happy and promoted Man Gui to the governor of Tongzhi, in fact, to be the chief military officer.

Later, he discussed merit again, and gave Man Gui a rank to be the right governor, and the shadow of the deputy thousand households, hereditary. Man Gui wrote a letter of thanks, and described his own merits.

Emperor Tianqi gave a commendatory answer and promoted him to the position of Governor of Zuodu.

Man Gui had a good relationship with Zhao Shujiao at the beginning, and in this battle, Man Gui hated Zhao Shujiao for not coming to rescue him in person, and blamed each other from then on.

After the Emperor of the Apocalypse heard about it, he issued an edict to admonish and encourage. Then Yuan Chonghuan had a discord with Man Gui, and wrote that he was full of ambition and insulted his colleagues, and he was afraid that he would delay the major affairs of the frontier, so please transfer him to another military town and hand over the affairs outside the customs to Zhao Shujiao.

The ministers of the Manchu Dynasty knew that Man Gui was competent, but they were worried that they might do bad things in a city, so they summoned Man Gui back. The ministers of the overseer king tried to say that Man Gui could not be transferred, but the order to summon him back had already been given.

Wang Zhichen asked him to arrange him at the gate of Shanhaiguan, but Yuan Chonghuan did not listen.

In leap June of the same year, the imperial court ordered Man Gui to handle the affairs of the Chinese military government in his original position.

Soon after, Yuan Chonghuan regretted himself and asked to adopt Wang Zhichen's opinion, and the Emperor of the Apocalypse agreed to let Man Gui hang the seal and move the gate of Zhenshan Pass, and concurrently lead the garrisons of the Four Roads outside the Guanwai and Yanhe, Jianchang and other places, and give him the sword of Shang Fang in order to increase his authority.

In May of the seventh year of the Apocalypse (1627), the Houjin army surrounded Jinzhou and divided its forces to advance into Ningyuan. Mangui sent troops to the rescue and was surrounded on the mountain. Man Gui and the general soldier You Shilu rushed to the front line and fought a big battle, and the victory and defeat were equal.

So he entered Ningyuan City and discussed with Chonghuan how to defend himself.

Soon after, the Jin army came to the city, and Man Gui led the deputy general You Shiwei and others out of the city to meet the battle, killing and wounding many Hou Jin troops, and Man Gui himself was seriously injured. After the good news was delivered, the imperial court added an official to Man Gui as the crown prince and prince, and Shiyin brocade clothes were served.

After Yuan Chonghuan left his post and left, Wang Zhichen served as the supervisor again, admired Man Gui's talent very much, and asked the imperial court to still send him to guard Ningyuan. When the Mongol fried flower and other tribes fell apart, Man Gui and Wang Zhichen summoned many Mongols to settle under their subordinates.

In August of the seventh year of the Apocalypse (1627), Emperor Tianqi died, and Emperor Chongzhen Zhu Youzhen ascended the throne, and issued an edict to warn Wang Zhichen not to repeat the mistakes of Yuan Yingtai and Wang Huazhen, and criticized Man Gui for catering to Wang Zhichen's wishes. Man Gui then complained of illness and asked for dismissal, but Emperor Chongzhen disagreed.

In July of the first year of Chongzhen (1628), the officials impeached the king's ministers one after another, and then connected to Mangui, the king's ministers were dismissed, and Mangui was also recalled to the military government.

Chongzhen made an order and asked, "Then how do you defend Kyoto?" ”

Sun Chengzong said: "At the critical moment, the defenders of the city cannot be allowed to endure hunger and cold, prepare their armaments, reward the soldiers, and strengthen the hearts of the people. Sun Chengzong's strategy Chongzhen thought it was very good, so he took out all the imperial silver he had left, and used it to reward the soldiers who defended the city.

After doing this, he said to Sun Chengzong: "You are in the military affairs inside and outside the governor of the capital, and you are strategizing. ”

So Sun Chengzong asked the first assistant Han Yi to build a pass, and personally went to patrol all parts of the capital, and in the middle of the night the next day, Zhu Youzhen suddenly sent an order to let Sun Chengzong go to defend Tongzhou.

Sun Chengzong then led 27 cavalry out of Dongbianmen, went straight to Tongzhou, and Baoding Governor Xie Jingchuan, Yu Shi Fang Daren, and Yang Guodong, the general soldier, held Tongzhou.

On October 26, the Eight Banners Army attacked the Great Wall Pass, Longjing Pass, and Da'ankou on the east and west routes.

At that time, Jizhen was in decline, the army was in ruins, Chongzhen and the courtiers were fighting fiercely, because there was no silver in the court, and the food and salary that Yuan Chonghuan suggested was gone.

The Houjin army did not encounter any strong resistance and successfully broke through the Great Wall.

On October 27, it broke through from Xifengkou, and after the break, there was only one route to Jingshidi, that is, from Xifengkou to Zunhua, from Zunhua to Jimen, from Jimen to Sanhe, and finally Tongzhou, and then directly to the city of Jingshi.

However, after the Jin army entered the border wall on the 27th, the two important military points of Zunhua and Santunying had been exposed to the ground of the Later Jin army, but all day on the 28th, the Later Jin army only marched to Hanerzhuang, which was 20 miles away from Xifengkou, and all the troops of the Later Jin Dynasty strangely stopped advancing.

No one knew that Huang Taiji had received an urgent report from the Ming army that had taken advantage of the situation to attack.

After reading the urgent report on the military situation, Huang Taiji secretly executed the messenger who came to report the news, so as not to let him leak the news and shake the morale of the army.

Huang Taiji has been unable to retreat now, and retreating now will not only greatly affect morale, but also the strategic goal he originally set cannot be achieved.

After stopping for a day, Huang Taiji continued to conquer the city.

On the 30th, the soldiers approached the city of Zunhua.

Zunhua is in the northeast of Jingshi, 300 miles away from Jingshi.

On the first day of November, martial law was imposed in Beijing.

In order to defend the Beijing Division, Sun Chengzong sent You Dai to lead 3,000 cavalry to support, sent Liu Guozhu to lead 2,000 soldiers and horses to join You Dai, transferred 3,000 Miyun soldiers to garrison Dongzhimen, 5,000 Baoding soldiers to garrison Guangning Gate, and sent people to recover Malan and Santun and two cities.

Zunhua is an important town in Jingdong, Yuan Chonghuan wanted to intercept the army of Houjin here, he urgently ordered Zhao Xianjiao, the general soldier of Pingliao, to lead 4,000 soldiers and horses, gallop to rescue Zunhua, and rush to Santun camp by taking the route of Funing and Qian'an.

He must finish the 260-mile road before Houjin completes the fifty-mile road from Xifengkou to Santun camp, rush through the blockade line that is about to be closed in Houjintou, and directly enter Zunhua City for defense.

In 1629 (the second year of Chongzhen of the Ming Dynasty and the third year of Jin Tiancong), on the second day of November, Zhao Shujiao, the chief soldier of Shanhaiguan, was ambushed between Zunhua and Santun camp, and the whole army of 4,000 cavalry was annihilated.

After the Later Jin army annihilated the army led by Zhao, it reversed the situation of the troops for four days, and the main force quickly advanced westward.

In the early morning of the third day of the first month, the Houjin army arrived at the city of Zunhua, and the city should immediately open the city gate to lead the Houjin army into the city, and Wang Yuanya, the governor of the Ming Dynasty, committed suicide and martyrdom.

At the same time, the Houjin army also launched an offensive against the Santun camp, and broke through the city within an hour, closing the gap in the battle line on the flank of the rear road, and then developed westward, marching quickly along the road from which Zhao led the sect, and the movement no longer seemed to be slow at all.

On the fourth day of the first month of November, the Houjin army marched west for two days and two nights for 100 miles, captured Qian'an, and threatened Yongping and Funing.

At this time, Yuan Chonghuan had already led 20,000 Guanning iron cavalry into the pass, and he didn't look at Yongping and Funing, where the right wing was threatened, and took Changli and Luanzhou, and went straight to Bao and Xianghe.

On the seventh day of the first month, the Houjin army broke through the Santun camp. The Ming Dynasty lost the opportunity to block the Houjin army in Zunhua.

Huang Taiji ordered 800 troops to guard Zunhua, and after the pro-unification, the Jin army then went south, marched to Beijing, and approached Jizhou.