When Diao Zheng led his troops to Xifengkou, at this time, the army of Jiannu led by Abatai outside Xifengkou had already evacuated Xifengkou, and when he arrived at Xifengkou, several generals under Zhou Yuji, after some discussion, knew that there was no way to retreat, and the reinforcements they were waiting for were not the army of the Ming Dynasty, but the people of the Dazhong Army were waiting for them, which made them completely desperate for the Ming Dynasty.

So these Zhou Yuji's subordinate generals, in the end, all chose to surrender to the Dazhong Army, led the troops to accept the reorganization of the Dazhong Army, and since then they have been included in the Dazhong Army, doing this, these people basically have no psychological burden now, they have been with the Dazhong Army like brothers for a long time, although the two sides were full of hostility at the beginning, but after getting along for a period of time, they basically have no hostility towards the Dazhong Army.

Especially when they came to Xifengkou this time, the Dazhong Army not only gave them a lot of artillery ammunition, but also supplemented them with 200 gunners of the Dazhong Army, these 200 generals of the Dazhong Army, this time in the battle of Xifengkou, played a huge role, none of these 200 people to the Dazhong Army was embarrassed, in the defensive battle, the fight was very tenacious, there was no one who escaped from the battle, and there were a few holding the powder keg to ignite the enemy and die together, so that these Ming soldiers will admire the Dazhong Army very much, so after they made a decision, almost none of the soldiers under their command expressed opposition, and they all expressed their willingness to obey the orders under the command of the Dazhong Army.

As a result, the remaining more than 2,000 officers and soldiers at Xifengkou immediately changed their flags and surrendered to the Dazhong Army after Diao Zheng led the troops here, and Xifengkou immediately became the control point of the Dazhong Army.

Diao Zheng did not have the right to appoint personnel, and after accepting their request to surrender, he immediately sent someone to report to Li Xin and Lu Xiangsheng and others who were sitting in Yongping Mansion to learn, and temporarily retained all these Zhou Yuji's generals, so that they could continue to lead the troops to stay in the town of Xifengkou, and at the same time personally took the generals under his command to Zhou Yuji's coffin to pay a grand tribute to Zhou Yuji.

When Zhou Yuji died, Diao Zheng's resentment towards Zhou Yuji also disappeared suddenly, before Zhou Yuji and him were enemies, the two were their own masters, and now Zhou Yuji led the troops to defend Shanhaiguan, repelled the Jiannu army, and fought to the death, which Diao Zheng admired him very much.

Although these generals who followed Zhou Yuji had also been enemies of him at the beginning, but now these people follow Zhou Yuji, and they can resist the entry of Jiannu in Shanhaiguan, and they fight so well, he is no longer jealous of these old subordinates of Zhou Yuji, and personally appeased them with kind words, telling them that the previous things have passed, and he Diao Zheng is not a cautious person, and he does not have to worry about the future After returning to the Dazhong Army, he Diao Zheng will leave them in trouble, which makes these Zhou Yuji's subordinates feel at ease.

Considering that the Jiannu army has retreated for several days, the two slave chieftains of Abatai and Haoge will definitely choose another pass to break through, Diao Zheng led the troops to Xifengkou, and after accepting the surrender of Zhou Yuji's men, he did not dare to delay here for too long, he left five hundred elite soldiers on the one hand, supplemented to the defenders of Xifengkou, on the other hand, left a batch of grain and ammunition for its use, after paying tribute to Zhou Yuji, he immediately led his troops to leave Xifengkou and marched towards Malan Valley Pass in the north of Jizhou, Now they can't judge where Abatai and Hauge will choose the next target after they retreat from Xifengkou, so they can only start from Ma Lanyu and look for them one by one.

At this time, Wang Chengping had already led thousands of cavalry under his command to the area of Xifengkou, and Diao Zhenghui reconciled, the two of them discussed, and Li Xin sent people from Yongping Mansion to inform them, so that they acted separately, Diao Zheng rushed all the way to the area of Malanyu first, to find out whether Jiannu took Malan Valley to enter the pass, and Wang Chengping led the cavalry under his command, and rushed to the direction of Miyun to intercept the Jiannu army from the Huangyakou Pass and Gubeikou in the Miyun area.

So the two immediately obeyed, each led the troops to continue to rush to the west, but their actions were still a little slow, Abatai and Hauge attacked the peak of the pass after the attack, immediately led the troops to retreat, turned to the west and began to hurry, in order to snatch the first entry into the first pass, Hauge and Abatai are anxious to overseer the road, although the mountain road is difficult, but they don't care about these at all, they Jiannu themselves live a life of drinking blood outside the pass all the year round, itself can be said to be a soldier of the whole people, very able to bear hardships and stand hard work, for this kind of rapid march, They have long been accustomed to it, as for the Han soldiers of the Han army banner, they don't care whether these Han soldiers can eat or not, along the way urging them to hurry at any cost, a little slack, they immediately scolded and even killed, forcing these Han soldiers with the Han army banner to rush forward desperately, and many Han soldiers and mules and horses were tired and killed on the way.

Finally, they detoured in the mountains for a few days, arrived at the area of Huangyakou Pass, at this time the officers and soldiers in the Miyun area were already very empty, Miyun General Tang Tong was previously ordered to lead the troops out of the pass and Yang Guozhu together to help Ningyuan, which was surrounded by Jiannu, but on the way, because the prison army Zhang Ruolin was always afraid of fighting, the overseer army slowed down, and the result was not far from Shanhaiguan, and he was ambushed by Dolgon, Yang Guozhu was killed immediately, Tang Tong and most of the soldiers under Yang Guozhu were driven into the sea by the Jiannu army, and Zhang Ruolin was also drowned in the sea. Only Tang Tong led a small number of remnants of the defeated army to flee the siege, and finally fled back to Shanhaiguan.

Later, a small number of routs then fled back to Shanhaiguan, but they were incorporated by Wu Xiang under his command, Tang Tong only led a few hundred remnants of the defeated generals, and retreated to Miyun, Tang Tong knew that he had failed the holy will, not only could not save Ning Yuan, but almost wiped out the entire army, and lost Zhang Ruolin, the commander, so he fled back to Miyun, and did not dare to explain to the emperor, just waiting for the emperor Zhu Youzhen to send him down.

After Zhu Youzhen learned the news, although he was angry, but he was helpless, the battle report came back and said clearly, the blame for the defeat of the battle was not on Yang Guozhu and Tang Tong, but because Zhang Ruolin was afraid of the enemy like a tiger, and the overseers were unable to move forward, so that the fighter plane was delayed, and the Ming army reinforcements were ambushed by the Jiannu army, which led to a big defeat. However, he still issued an order to remove all his fame, and put his family in prison for later disposal, and for Tang Tong, he was only demoted to the position of deputy general, so that he could make meritorious service and continue to guard Miyun.

Tang Tong saved his life, but let him guard Miyun, it was simply an impossible task, his Miyun soldiers had almost been lost outside the pass at this time, and some of the generals who stayed in Miyun surrendered to the Dazhong Army when they entered Juyong Pass and passed through Miyun, so at this time Tang Tong was in Miyun, it can be said that he was about to become a bare-pole commander, and only some of the soldiers who stayed in Guancheng were left, and they were still his subordinates, and he was not even able to form a reserve team that could be dispatched to help Zhuguan.

Therefore, a few days ago, Wu Xiang sent someone to inform him that Jiannu would have another army that was likely to break through the passes in the Miyun area, and asked Tang Tong to strengthen the defense of the passes in the Miyun area, Tang Tong's first reaction was to panic and not know what to do.

Although Tang Tong was in a hurry to the court and asked the emperor to send troops to help Miyun, but at this time, there were only a few Beijing camps left in the Shuntian Mansion of the Beijing Division, and there was no strength to send troops to aid Miyun, so all Tang Tong could do was to send people to the guards in Miyun to strengthen the guarding force of the pass, as for what reinforcements, grain and grass, ammunition, and weapons, let them figure out their own way, and he Tang Tong couldn't take anything out to support them.

Therefore, the guards of the pass will not be able to get any possible support except for their own way, and there are only more than 1,000 officers and soldiers left in the area of Huangyakou at this time, although the terrain of the Huangyakou Pass they guard is dangerous, but their strength is too different from that of the Jiannu army.

The Huangyakou guard is also a garrison, this person's surname is Hu, but he is also a loyal minister of the Ming Dynasty, although he found that the Jiannu army arrived outside the Huangyakou Pass, but did not abandon the pass and fled, but led the troops to defend the city in the Huangyakou Pass, trying to prevent the Jiannu army from breaking through.

But their strength is limited, the people's hearts are scattered, Abatai and Hauge overseers stormed a day later, the city was lost, this Hu garrison was invincible, and finally martyred in the pass, his family up and down more than a dozen people, also all in the home in the pass set fire to self-immolation and died, Huangyakou Pass was finally broken by Abatai and Haoge led the troops, from here flooded into the pass.

At this time, Abatai and Haoge were overjoyed, no matter what, they were the first to win the first credit for entering the customs, so they immediately sent people to the Huang Taiji on the side of Shanhaiguan to report the victory, and immediately led the army from the area of Huangyakou into the pass, like a group of tigers and wolves began to sweep through the territory of Miyun, and approached Miyun County.

Tang Tong, who was sitting in Miyun County, heard the news of the Huangyakou Pass, and was immediately shocked with cold hands and feet, at this time he only had less than 2,000 officers and soldiers left in Miyun County, and in the face of the surging army of more than 30,000 Jiannu, he could be said to have no power to fight back, and the possibility of holding Miyun County basically did not exist, so Tang Tong had to take these two thousand officers and soldiers, abandoned Miyun County, and fled to Huairou County, and the Jiannu Army captured Miyun County without much effort, and then continued to kill Huairou.

As soon as he arrived in Huairou, Tang Tong learned that the Jiannu army had chased after him again, so Tang Tong had to collect some Huairou defenders, abandoned Huairou County, and fled to Shunyi County.

But Abatai seems to have fallen in love with Tang Tong, after taking Huairou, he didn't take any rest, and the leading troops followed him and chased him to Shunyi, Tang Tong was also able to run, and when he saw that the Jiannu army rushed to Shunyi again, he simply didn't do anything, and continued to flee, this time he fled to Tongzhou in one breath.

After arriving in Tongzhou, Tang Tong found that he had nowhere to escape, at this time Bazhou, Wuqing, Xianghe and other prefectures and counties had been taken by the Dazhong Army, and the only thing he could escape was Jingshi Shuntianfu.