By the time the battle outside Chengdu ended, Zhou Tong had already led Dou Chuan, Liu Dangdang and 50,000 troops to the south. As for the land of Hanzhong County, it was Deng Qiang and the town army that arrived later who were responsible for guarding the town. Among them, Zhou Tongzi led an army of 30,000 people, along the road taken by Sima Xun before, from the west of Nanzheng to the south through the sword lord Zitong, and then went straight to Chengdu. Dou Chuan and Liu Dangdang led 20,000 troops to cross the Bayu Pass from the south of Nanzheng County, thus attacking Pasir County.

Pasir County is located to the east of Zitong County, and the two counties are connected and located in the southern part of Hanzhong County. If these two counties plus Hanzhong County, basically most of the territory and population of the entire Liangzhou are in it. Among the remaining counties in the south, the most significant ones are Guanghan County in the south of Zitong County and Ba County in the south of Pasir County.

Therefore, if these two armies go smoothly, they can quickly take down Liangzhou.

Because of the place where Sima Xun went south before, he basically left soldiers and horses to defend it. And, mainly to guard the south, responsible for protecting their own rear grain routes. Therefore, they did not expect to be attacked from behind at all.

Especially when the news of Sima Xun's defeat arrived, Sima Xun's soldiers and horses in Sword Pavilion and other places immediately collapsed. Originally, most of these people were forcibly recruited, and no one was willing to die for the brutal Sima Xun.

Therefore, in such a situation, it is natural to run as far as possible. Some of the remaining soldiers and horses, after seeing the arrival of the Tang army, opened the city and surrendered without saying a word. Therefore, taking advantage of the east wind of Sima Xun's rebellion, Zhou Tong and other armies of the two routes went smoothly.

Before Zhou Chu and Xuan Xu and other Yizhou soldiers and horses arrived, Zhou Tong led his army to successfully kill under Mianzhu Pass south of Fucheng. And Dou Chuan and Liu Dangdang also took the southernmost county seat of Anhan, the southernmost county of Pasir County. The armies of both roads have advanced to the land on both sides of the Fujiang River, and so far, it can be said that most of Liangzhou has been successfully taken.

But by this time, the war had begun to change. The main reason was that it began to really fight with the Jin army, not with Sima Xun's rabble as it did at the beginning.

Especially at this time, Zhou Chu and Xuan Xu had already led an army of 50,000 to the north to support Mianzhu Pass, making the battle in Mianzhu Pass an important node that determined the ownership of Liang Yi's land. Once it is said that the battle in this place is lost, it means that the Tang army is likely to stop there.

This Mianzhuguan is located in the mountain valley road, the north and south sides are mountainous, only the middle line is a relatively low and flat passage. Therefore, the establishment of Mianzhuguan here is to hold the throat of the place.

If Zhou Tong took the Mianzhu Pass, then he could smoothly enter the Sichuan Basin, where the terrain was much flatter, almost as unhindered as the plains. When the time comes, he can go straight to the city of Chengdu.

Just when the situation in Liang Yi's land became tense and unfavorable to Jiang Zuo, Huan Wen's side had already taken action. At this time, according to Huan Wen's orders, all the soldiers and horses in Xuchang, Suiyang and other places began to march north to force those counties occupied by the Tang army.

And Huan Wen himself also rushed to Xiangyang from Guxiao, preparing to attack Wuguan from Nanyang State, so that he could enter Guanzhong the fastest and directly hit the key point of Datang.

After all, this is a big battle between the two most powerful forces today, and no matter who wins or loses, it is very likely to change the current and even future situation in the world.

After Li Xin in Chang'an received all kinds of news, he quickly took action. The first was to order Zhao Ji and Chen Kang, who were in Xingyang and Jiyin, to let them hold on to various places, give full play to the mobile advantages of the Tang army, and harass the enemy army with a small force of cavalry, cut off their food routes, and burn their warships.

In general, it is a strategy of active defense, so as to deal with the active attack of the Yan army. Compared with the Tang army in the land of Yan and Henan, Liu Xiaohai on the north bank of the Yellow River and west of Mount Tai is a different approach.

Li Xin asked them to make a big noise, making it look like they were going to cross the river and attack Yan at any time. In short, it was to let the Yan court in Qingzhou, especially Murong Ke, see that if they dared to attack the Tang Dynasty with Jiang Zuo, they would face their own thunderous anger.

At the same time, he ordered the soldiers and horses in the Shangluo area to immediately march westward from Wuguan, and after passing the Zhulin Pass, Manchuan Pass and Huling Pass, they killed the territory of Weixing County and went straight behind Huan Zhen in Xicheng County.

As for himself, he led the Bupo Army and 20,000 ordinary troops, a total of 30,000 Tang troops out of the pass and south, attacking Yangchengyi, Kuiwen Pass and other places south of Wuguan, and striving to kill the territory of Nanyang before Huan Wen personally arrived.

Li Xin's action this time, just like the sudden large-scale attack on Yan the same year ago, is something that many people did not expect. No one thought that the Tang and Jin sides, who were allies and cooperated in attacking Yan the year before, would turn their faces into enemies so quickly.

In Qingzhou and Jinan County, Murong Ke has relaxed a lot these days, but he doesn't dare to relax too much. Especially for the defense of the border land, he did not dare to ignore it for a moment. After all, he couldn't grasp Li Xin's thoughts.

When the news came that the Tang army was attacking Liang Yi in the south, he showed a smile, but it was only a hint.

"King, now that the Tang and Jin Dynasty are attacking each other, should we take this opportunity to attack the Tang Army and recapture the Central Plains in one fell swoop?" The important ministers of the court, someone proposed to Murong Ke.

"Do you think it's possible? Look at the appearance of the Tang Army sharpening their knives on the north shore now, I'm afraid they are waiting for us to send them to the door! When the time comes, it will be us who have broken the covenant, and Li Xin will have no burden if he wants to go south. What's more, with our strength, it is not easy to recapture the Central Plains! For this proposal, Murong Ke directly rejected it without thinking about it.

"That'..... How should I get back to Huan Wen's side? He sent someone to deliver the letter, saying that he hoped that we could send troops to attack Tang and cooperate with them to attack Li Xin! ”

"Don't worry about him, just think of a perfunctory past! The Tang and Jin wars, the more chaotic the fight, the better, the better it will be for us. If the two of them get along happily, it will be the real trouble for us! Now for us, the most important thing is to recuperate and regain our strength! Murong Ke pondered for a moment and replied.

Like Murong Ke, there are also two forces, Qiu Chi and Liangzhou. They are not the same as Yan Guo, mainly because they have always been subordinate to Jiang Zuo in the past and regard themselves as Jiang Zuo's courtiers.

Although in the past two years, due to the power of the Tang Dynasty, he had to choose to surrender, but from the perspective of those who are in power at the top, I am afraid that Jiang Zuo is still more identified with Jiang Zuo in their hearts. After all, Jiang Zuo's system comes from the same source as them and has won their hearts.