This time, as the vanguard of the Jiannu army, it is the Jiannu Zhengbai Banner and the two inlaid white flags, both of which are the soldiers and horses led by the three Dolgon brothers, and their existence undoubtedly makes a threat to the power of Huang Taiji and his son Haoge, like this big battle, Huang Taiji will never let go of the opportunity to weaken the strength of the two white flags, so Dolgon, Azig, and Duoduo The three brothers, naturally, can only ask Ying to act as the vanguard of the Jiannu army, leading the two white flags and some of the soldiers and horses of the Mongolian Eight Banners and the Han Eight Banners, and rushed to Ningyuan City first.

At this time, the official army in the Ningyuan area was only more than 20,000 people, after all, the limited Ming army had to defend Ningyuan and Shanhaiguan, and it was impossible for Hong Chengchou to pile up all the available men and horses in the area of Ningyuan City and fight a decisive battle with the Jiannu army, so under the attack of the three Dolgon brothers, Hong Chengchou placed several lines of defense on the periphery of Ningyuan City, which were soon broken through by the soldiers and horses of Dolgon and others.

This battle can not be said that the officers and soldiers are unwilling to work hard, whether it is Cao Bianjiao who guards Baitai Mountain, or Wang Tingchen who guards the old crooked peach mountain, and even Lu Pinqi and other generals who guard the area of Jiulong Mountain, they also did their best, and each led his troops to fight a fierce battle with the Jiannu army, but the morale of He Nai's official army was not high, and the strength was not as much as the Jiannu army, that is, Cao Bianjiao, who was deployed in Baitai Mountain, was caught off guard by Jiannu and won a small victory, and then because of the lack of troops, Seeing that it was going to be surrounded by the army of Jiannu in the area of Baitai Mountain, Cao Bianjiao had to lead his troops to evacuate Baitai Mountain in order to preserve his strength, and Wang Tingchen was soon surrounded by the army of Duoduo and Azig in the area of the old crooked Taoshan, Wang Tingchen refused to accept Dolgon's persuasion to surrender, and led the troops to start a fierce battle with Jiannu in the area of the old crooked Taoshan, but unfortunately his strength was limited, and he was fighting alone, after two days of fierce fighting, Wang Tingchen finally died heroically under the battle, and died in front of the two armies, under his command more than 4,000 generals, more than half of them were killed, The rest were almost all captured.

Cao Bianjiao tried to rescue Wang Tingchen with the remnants, but was blocked by Dolgon's troops, and after a fight, Cao Bianjiao's troops were defeated and fled back to Ningyuan City.

Only Lu Pinqi, the deputy general guarding Jiulong Mountain, after learning that Wang Tingchen's troops were defeated and killed, saw that he was defeated in battle, and finally led his troops to surrender to Dolgon's Jiannu army.

At this point, after six days of the outer battle of Ningyuan City, the whole line collapsed, and then the Jiannu army surrounded Ningyuan City.

Although Hong Chengchou wanted to drag the Jiannu army in Ningyuan City for a period of time, delay the speed of the Jiannu army to the south, and buy some time for the deployment of the rear Shanhaiguan area, but when the Ming official army arrived at this point, the combat effectiveness was already quite weak, even if a general like Cao Bianjiao Wang Tingchen was willing to fight to the death, he could not change their disadvantage, so that the outer battle of Ningyuan City collapsed in just a few days.

In desperation, Hong Chengchou had to lead the remaining more than 10,000 people, including Zu Dashou and Cao Bianjiao, to be trapped in Ningyuan City, and hurriedly sent people to ask for help from Jingshi.

Although the Ming Dynasty was already embattled by this time, when he learned that Hong Chengchou and Zu Dashou and other soldiers and horses were besieged in Ningyuan City, Emperor Zhu Youzhen still showed his admirable side.

By this time, although Zhu Youzhen had already learned that Xiao Tianjian's Xingtian Army had begun to attack Jinggi in three ways, and he knew very well in his heart that the Ming Dynasty was likely to be destroyed within this year, but he was still very angry about Jiannu's rebellion.

And just three days ago, he learned that the soldiers and horses on the left side of the Xingtian Army, under the leadership of the traitor Lu Xiangsheng and the thief general Yan Chongxi and others, "defeated" Yang Guozhu, the general soldier of Xuanda, and occupied the entire territory of Datong Mansion, and at the same time "forced" Yang Guozhu to lead his troops to retreat from Xuanfu Town to Juyong Pass, and gave up Xuanfu Town, so that the land of Xuanda was also quickly lost within a few days, Zhu Youzhen was also angry, but at this time, he still chose to make Yang Guozhu and Xuanhua Miyun General Tang Tong, led the army to Shanhaiguan to aid Hong Chengchou's department, which was besieged in Ningyuan City.

In addition, after the death of Wu Sangui, there was no general in Shanhaiguan, and at the request of the courtiers, Chongzhen once again reinstated Wu Xiang, who had already left the Beijing Division, and appointed Wu Xiang as the chief military officer of Shanhaiguan again, and ordered him to immediately go out of Beijing to Shanhaiguan to preside over the defense of Shanhaiguan.

During this time, Chongzhen also carefully reviewed his mistakes in the past few years, he naturally hated Xiao Tianjian, but his hatred for Jiannu was even ten times greater than his hatred for Xiao Tianjian.

Carefully recall the reason why the Ming Dynasty has come to the point where the mountains and rivers are exhausted now, Zhu Youzhen believes that the most fundamental reason is still in the Jiannu, since the wild boar Pinurhachi rebelled in Liaodong, the finance of the Ming Dynasty began to fall into a predicament, from the beginning of the Apocalypse, the financial revenue of the Ming Dynasty was mainly inclined to deal with the Jiannu outside the Guan, so that the domestic famine was repeated, but it was unable to help, and was forced by the situation in the north, constantly increasing salaries and endowments, and finally making the world full of wolves, and the people rose everywhere.

So at present, although the fall of the Ming Dynasty is imminent, Zhu Youzhen is still secretly determined to hold the area of Shanhaiguan and no longer let Jiannu go south, in the face of such a situation, Zhu Youzhen chose to put the main forces that can still be mobilized into the Guanning battlefield at this moment.

For this reason, he also recruited Tang Tong, the chief military officer, into the capital, personally mentioned it, and gave high hopes to Tang Tong, hoping that Tang Tong could play a key role at this time and rescue Hong Chengchou back to Shanhaiguan, and also summoned Wu Xiang, who was about to leave Beijing to take up his post, hoping that he could hold the front line of Shanhaiguan and no longer let the Jiannu army enter the customs.

Tang Tong and Wu Xiang were very moved at first, patting their chests one by one to promise that they would not disappoint the holy hope, and they must block the entry of Jiannu into the customs, and then they went out of Beijing and led their troops towards Shanhaiguan.

A large number of officers and soldiers under the leadership of Yang Guozhu and Tang Tong began to leave the land of Gyeonggi and rushed to Ningyuan City, which suddenly made the land of Gyeonggi even more empty.

So the last available forces of the entire Ming Dynasty began to converge towards the Gyeonggi area, and within a few days, under the command of Diao Zheng, the Dazhong Dynasty Central Route Army took Guangping Mansion like a bamboo, and the soldiers pointed directly at Zhending Mansion.

In the fourteenth year of Chongzhen of the Ming Dynasty, the first year of the first year of the Great Middle Tianyuan, and the sixth year of Chongde of the Qing Dynasty, the three forces in northern China launched a great duel about the life and death of the three parties.

In fact, the protagonists of this duel can only be said to be Jiannu and Dazhong, as for the seemingly orthodox Ming Dynasty, in this duel, it has been completely reduced to a subordinate position, and it can no longer be called the protagonist.

The Northern Expedition of the Dazhong Dynasty started a few days later than the Jiannu Army, but for Xiao Tianjian, the situation faced by the Dazhong side was slightly better than that of the Jiannu side, after all, by this time, the last army of the Ming Dynasty with a certain combat effectiveness was mainly concentrated in the Guanning area, and as for the officers and troops left behind in various parts of the Guannai, they basically had no combat effectiveness.

On March 17, Xiao Tianjian led the troops out of Huai'an Mansion, along the Grand Canal began to go all the way north, along the way continued to attack the official city that has not yet surrendered, in front of Xiao Tianjian's powerful right army front, the local government defenders, there is no soldiers and horses to resist it, so under Xiao Tianjian's supervision, the state capital and county along the way can be said to be like the destruction of the right army of the Dazhong Dynasty have been broken through, more local officials and officials, directly under the command of the right army of Dazhong, have taken the initiative to surrender, Surrendered to the Great Middle Kingdom.

Therefore, the offensive along the Grand Canal of the Right Route Army was very smooth, and in less than a month, they were under the command of Xiao Tianjian, from Huai'an Mansion to Linqing City, and the important towns along the canal such as Qingjiang, Xuzhou, Jining, and Dongchangfu along the way either surrendered directly, or they were quickly broken under the front of the Right Route Army.

In order to prevent Xiao Tianjian's army from going north along the canal, the government also thought of some methods, such as destroying the locks along the way, sinking ships in the canal to block the canal, but these measures for Xiao Tianjian's right army, little effect, in terms of military strength, the local government can not compete with the right army at all, every time the government tries to block the canal, Xiao Tianjian often raises his arms, and hundreds of people come to help the army dredge the river and repair the damaged sluice locks. In addition, the elite engineer battalions accompanied the march, and these engineer units undertook a large number of repair projects, so that the efforts made by the government were often not effective enough, and the right army continued to advance towards the north like a sharp blade.

On the twenty-second day of the first year of Tianyuan, Xuzhou Zhizhou opened the city and surrendered, on March 29, Jining City was broken by the Right Route Army, and the Zhizhou of the city was killed, on the sixth day of April, Dongchang Mansion was broken, on the seventh day of April, Liu Yaoben divided troops from Dongchang Mansion to Jinan Mansion, three days, Jinan Mansion announced its surrender, and a day later Tai'an Prefecture also announced its surrender, on April 17, it happened to be the time of the Northern Expedition of Dazhong Dynasty for a full month, Xiao Tianjian led the army to appear under the city of Linqing.

And in charge of guarding Shandong, Liu Zeqing, the chief military officer of the Shandong Governor, did not play a role at all in this month, he led 20,000 officers and troops, is retreating again and again, giving up many cities one after another, twice as fast as the right army under Xiao Tianjian, first from Tai'an Prefecture to Jinan Mansion, and then abandoned Jinan Mansion and fled to Binzhou, it can be said that a battle did not fight with the Right Route Army, and fled to Binzhou in mid-April, began to breathe in Binzhou, 20,000 officers and troops under his command, in this month's run, There were many deserters, and when he ran to Binzhou, only 4,000 of the 20,000 officers and soldiers were left weak, and they completely lost the strength to confront the Great China Defense Army, and became a panicked army, at best, it was almost the same as bandits.