Although Li Zicheng knew that his Dashun army was not the opponent of the Dazhong army, he still insisted on doing a battle of trapped beasts, and gathered the 300,000 Dashun troops under his command to the surrounding areas of Xi'an Mansion, and led the army Chen soldiers in Shangluo, Yaoxian, Huazhou, Weinan and other places to defend Xi'an Mansion with his generals Hao Shaoqi, Li Guo, Li Shuangxi, Liu Fangliang, Zhang Ding and others.

In early October, in the name of the general of the Great Chinese Dynasty's expedition to the west, Yan Chongxi ordered the Dashun army in the area of Yao County to surrender for the last time in Juzhou, but after being rejected by Hao Shaoqi, a general under Li Zicheng, he ordered the army to rise on the 10th day of October and began the campaign against Li Zicheng.

Yan Chongxi personally led 20,000 elite soldiers, waved out of Dunzhou, easily conquered Huangling and other counties along the way, and rushed to Yaoxian, the gateway to the north of Xi'an, on October 18, the generals of the Dashun army, Hao Shaoqi and Li Shuangxi, each led 20,000 troops, a total of more than 40,000 people, and also coerced nearly 30,000 people, known as 100,000 troops, in the area of Yaoxian and Yan Chongxi's department, the two sides immediately launched a big battle in the area of Yaoxian.

Yan Chongxi didn't care about the other party at all, but just stared at the area around Yaowang Mountain where the Chinese army of Hao Shaoqi's headquarters was located, and the overseers launched a fierce attack on Hao Shaoqi's headquarters.

More than 20,000 Dashun troops under the command of Hao Shaoqi are basically a rabble, the usable soldiers are actually only about 3,000 people, in the face of the onslaught of the large Chinese army, just insisted on a day, and was defeated by Yan Chongxi in Yaowang Mountain, although Hao Shaoqi led the troops to resist desperately, but the two armies are not a grade of army at all, in the face of the powerful firepower of the large Chinese army, Hao Shaoqi was defeated in the battle, and a left leg was blown off by the cannon on the spot, although he was rescued by his own soldiers after being injured and did not die, but the whole army was defeated, and Hao Shaoqi was also captured by the large Chinese army on the spot, and was immediately beheaded by Yan Chongxi's order.

As soon as Hao Shaoqi was defeated, Li Shuangxi was alone, first the 30,000 people who were coerced to help the war did not eat or drink, and then learned the news of the attack of the Dazhong army, so they mutinied on the spot, fled all over the mountains and fields, Li Shuangxi ordered to chase and kill the fleeing people, and within one day, nearly 10,000 people were slaughtered.

Yan Chongxi saw the opportunity of Li Shuangxi to divide his troops to chase and kill the people, and sent a cavalry to raid Li Shuangxi's department, Li Shuangxi's department was suddenly defeated, and was chased and killed dozens of miles away by the cavalry battalions of the two large Chinese army, and finally fled back to Xi'an Mansion with less than a thousand routed troops, and the rest of the Hao Shaoqi and the Dashun army generals under Li Shuangxi surrendered on the spot, and were captured by the large Chinese army Nearly 20,000 horses and horses, and at the same time collected more than 10,000 people who fled and won the victory of Yaoxian.

Yan Chongxi was angry at the massacre of the people by the Dashun army, although the culprit Li Shuangxi fled, but among the prisoners, he captured hundreds of Li Shuangxi's generals who slaughtered the people, and beheaded them all outside the city of Yaoxian.

At the same time, Liu Bao, who was in the Tongguan area, led his troops and horses to launch an offensive against Luonan County, and it was Li Zicheng's general Liu Fangliang who guarded Luonan County, but Liu Fangliang's troops were only more than 4,000 people, and they could not resist the menacing Liu Bao's troops.

Liu Fangliang only led his troops to resist in Luonan County for one day, and there were rebels under his command, opening the north gate of Luonan County, and the Dazhong Army immediately attacked Luonan County, Liu Fangliang saw that he was invincible, and then abandoned the city from the south gate and fled, and Luonan County was broken on October 13.

After Liu Bao captured Luonan, he immediately waved his division and began to attack Shangzhou, the Shangzhou defender was Gao Yigong, Gao Yigong gathered a total of 40,000 Dashun troops in the Shangzhou area, trying to defend Shangzhou, Liu Bao's troops blocked in the Shangzhou area, Liu Bao led the troops to attack Shangzhou, Gao Yigong led the army to flee back to Shangzhou to fortify the Huangshaling, Dangshan and other places in the north of Shangzhou, and the two armies immediately launched a big battle in the Huangshaling area.

This battle was fought for four days, under the supervision of Gao Yigong, this time the Dashun army took advantage of the terrain, and resisted very fiercely, until the fourth day Liu Fangliang was killed by a marksman of the Dazhong Army, Huangshaling was announced to be broken, and then Liu Bao led the army to storm the party mountain, Gao Yigong had to abandon the party mountain, and fled back to Shangzhou City in a hurry to garrison.

Liu Bao attacked the city of Shangzhou on October 20, launched a fierce attack on the city of Shangzhou, Gao Yigong while defending Shangzhou, while asking for help from Li Guo, who was guarding Weinan, Li Guo led his troops to Shangzhou after hearing the news, but at this time, every move of the Dashun army had already been under the monitoring of the scouts of the Dazhong Army, and Li Guo's department in Weinan had just moved, and was immediately learned by Yan Chongxi and Liu Bao, Liu Bao immediately sent his general Fan Sheng to lead four battalions to the bank of the Danjiang River, blocking Li Guo's way to Shangzhou.

After Yan Chongxi swept the area of Yaoxian, he did not directly march to Xi'an, but divided his troops in the area of Yaoxian to divide the troops into Fuping, Baishui, Chunhua and other counties, at this time Li Zicheng was in Shaanxi, and he had already lost the hearts of the people, and when he learned that the Dazhong army was coming, the people everywhere responded and began to cooperate with the Dazhong army and the Dashun army as the enemy, so that the Dashun army in these places was quickly defeated and fled to Xi'an.

Knowing that Li Guo's department, who was guarding Weinan County, wanted to go to Shangzhou to rescue Gao Yigong, Yan Chongxi immediately sent Gao Jie to lead the troops to Weinan County.

Li Guo just left for a short time, and learned that Gao Jie led the army to raid Weinan County, so Li Guo had to divide his troops back to aid Weinan County, resulting in the dispersion of his troops, when he arrived in Danjiang, he was intercepted by Fan Sheng, although Li Guo was strong, but where is the strength of the Dashun army, Fan Sheng is not a general who is too strong, but he is very calm, in the Danjiang area, he led the troops to fight steadily with Li Guo, relying on the equipment advantage and soldier quality advantage of the Dashun army far more than the Dashun army, after the battle, Li Guo was unable to parry, and at this time, Li Guo learned that Weinan County had been conquered by Gao Jie, the rear foundation had been lost, and the Dazhong army on the opposite side was fierce, so he had no choice but to give up the rescue of Shangzhou, and also led his troops to flee back to Xi'an.

Gao Yigong left and waited for Li Guo to come, and Li Guo did not arrive on the right, so he had to send someone to Xi'an Mansion to report urgently, and asked Li Zicheng to send troops to help, but Li Zicheng was also anxious at this time in Xi'an Mansion, and did not send troops to rescue Gao Yigong at all, isolated and helpless, in Shangzhou only lasted less than seven days, Gao Yigong knew that Dashun was finished, so he ordered to give up resistance to Kaecheng and surrender to Liu Bao, so far to the beginning of November, only one month, Li Zicheng's painstakingly managed outer defense line, under the combined attack of Yan Chongxi and Liu Bao, the ice disintegrated.

In this month, Li Zicheng's Dashun army suffered heavy losses, the generals Hao Shaoqi and Liu Fangliang were defeated and died, Gao Yi's power department surrendered, Li Guo and Li Shuangxi were defeated and fled back to Xi'an, Zhang Ding disappeared in the chaos, and he didn't know whether he died in the chaos, or was captured by the Dazhong army or fled into the mountains alone.

In short, in a month's time, Li Zicheng, who claimed to be more than 100,000 soldiers and horses, was beaten by the Dazhong army, except for more than 20,000 people who were killed and less than 20,000 fled back to Xi'an, the rest basically either surrendered to the Dazhong army or were captured by the Dazhong army.

made Li Zicheng's strength weakened by half in a month, which scared Li Zicheng and didn't know what to do for a while.

So Li Zicheng wanted to ask Song Xiance again, but when he was looking for Song Xiance, he learned that Song Xiance didn't know when, he had escaped from Xi'an Mansion, and he didn't know where to go.

Song Xiance has already seen that Li Zicheng is no longer enough to become a big thing, since the Dazhong Army has solved the problem in the north, it will not leave any affection for Li Zicheng at all, with the strength of the Dazhong Army, Li Zicheng will fight against it, don't look at Li Zicheng's Dashun army seems to be a lot of people, Song Xiance but until these Dashun soldiers are what kind of goods, Li Zicheng's defeat is only a matter of time, the reason why he followed Li Zicheng is to seek glory and wealth, but not to follow Li Zicheng to be martyred, so after learning that the war is not good, Song Xiance immediately abandoned his official position, sneaked out of Xi'an Mansion, and disappeared from people's field of vision.

Song Xiance's escape was undoubtedly a major blow to Li Zicheng's psychology, making Li Zicheng more suspicious and irritable, as long as there was a slight disappointment, he would kill people at every turn to vent his anger, and it didn't take long for him to kill thousands of people in Xi'an Mansion, and even his new concubines were killed by his order because of a trivial matter, the most miserable concubine was just because when he accidentally served tea to Li Zicheng, he sprinkled the tea on Li Zicheng's dragon robe, and was ordered by Li Zicheng to chop off his hands. and then set it up outside and burned him alive with fire, and for a while the people who approached Li Zicheng could be said to be in danger, and it made Li Zicheng's subordinates start to think about it.

This is not the worst thing, Li Zicheng became the attack against the Dazhong army, gathered hundreds of thousands of horses, but he simply could not feed so many soldiers and horses, even the most basic military rations could not meet their needs, so many Dashun troops in order to solve the problem of food, they could only start with the surrounding people, poor Xi'an Mansion around the people, almost did not live a good day, then suffered another catastrophe, everything as long as it can be eaten, it can be said that all were robbed by the Dashun army, a large number of people can only eat bark and grass roots, Even eat Guanyin soil, after entering November, the temperature in Shaanxi is plummeting, even the grassroots can not be found in the end, so a large number of people are starved to death, a large number of hungry people in Xi'an city are pulled out of the city every day, discarded into the ravine, its situation is unbearable.