After Li Siye led the army back to Chengdu, he did three things, the first was to build an ancestral hall for Yan Wu in the city, and ordered people to make statues and incense offerings. The second is to reward the soldiers who participated in the crusade against Shuzhong, among which the Cui brothers were the first, Cui Ning was appointed as the envoy of Chengdu Yin and Jiannan Chuanzhongjie, and both brothers were crowned county dukes. The third thing is to implement a new tax law in Shuzhong, combining the two tax laws with the apportionment into the mu, exempting Shuzhong from paying taxes for one year and using it to expand the new Jiannan Army. The Xinjiannan Army was divided into four armies, five cities and six guards, the unity battalion was renamed and the army lineup remained unchanged, and the other three armies were the Dongchuan Army, the Xichuan Army, and the Chongqing Army.

Li Siye had his own plans for the candidates for the envoys of the three armies, and he went to visit the Guo brothers again, hoping that they would be able to take up military positions in Sichuan.

Guo Yingyi and Guo Yinggan were out of consideration for their own situation, and even more because Li Siye gained some of their favor after burying Yan Wu. They agreed to Li Siye's request and decided to go out of the mountain, and served as military envoys to the Dongchuan Army and the Xichuan Army respectively. The former Yizhou Thorn Shi Du Ji served as the Yuzhou Thorn Shi and the Chongqing Military Envoy, so that the middle of Sichuan formed a balanced pattern of two large and one small.

At this time, Li Siye had been in Sichuan for half a year, during which the southern court wanted to take advantage of Li Siye's attack on Shuzhong to wait for the opportunity to go north, and set off from Xiangyang to attack Wuguan in the north, but was repelled by the Wuguan guard Ashina Lulu.

Compared with Li Heng's Northern Expedition, Shi Siming's attack on the military fortresses of Hedong and Guanzhong was particularly fierce. He sent troops to attack Yunzhou City twice, but Bai Xiaode was unable to defend it, and he could only return in vain. Yunzhou City did not work, so he sent troops to attack Taiyuan from the Jingcheng of Taihang Bacheng, but was repelled by Li Chongbao at Jingcheng Pass.

As for Tongguan in the surface of mountains and rivers, Shi Siming didn't think that he had the good luck of An Lushan to conquer it.

Li Siye was able to successfully capture Chengdu without fire in the rear, in addition to the well-trained army under his command and the brave soldiers, the most important thing is that the area he occupies is the most complex terrain in the world, including the three Jin Dynasty between the Taihang Mountain and the Wangwu Mountain, the Guanzhong and Hanzhong surrounded by the Qinling Mountains, the Shuzhong with the Hengduan Mountains and the Daba Mountain, and the Shuofang in the Hexi Corridor and the Hetao area, which have natural geographical advantages in the face of the Central Plains and the south of the Yangtze River. However, at the same time, it also borders the Hui, Tubo, Khitan and other parts of the north, and is vulnerable to offensive attacks.

Since the defeat in Longyou, Tubo Supiru has not carried out a major military operation in the Longyou region of Hexi, but they have shifted their strategic focus to Shuzhong, trying to cross the Hengduan Mountains to attack the central Sichuan Basin, so Li Siye spared no effort to support the new Jiannan Jiedu envoy Cui Ning, as long as the two brothers do not make any trouble, he can ensure that they can enjoy the treatment and die a good life.

At the beginning of Cui Ning's tenure as the envoy of Hexi Jiedu, Tubo carried out three major attacks on Sichuan, all of which were repelled by Cui Ning with the Jiannan army.

In addition to the Tibetans, the pro-Tang faction among the Hui forces was also ready to move, and under the pretext of helping the Tang counterinsurgency, they repeatedly attacked the three surrendered cities in the Hetao area and the area east of the Hedong.

In order to maintain stability behind him and carry out the war of unification, Li Siye decided to send envoys with a large amount of money to appease the Hui Hui. The Hui Khan verbally agreed well, and the covenant was signed happily. However, not long after that, the old illness relapsed, and he continued to attack Shuofang and Hedong.

Li Siye was anxious, the Central Plains was the main grain-producing area, the population recovered quickly, and it was easy to recruit soldiers, if Shi Siming was given the opportunity to develop and grow, if he wanted to destroy him in the future, it would take a greater price. And if you want to clean it up, it will take at least a year to prepare for the war, and the use of troops and food and grass will cost a lot, which is easy for Shi Siming to take advantage of the loophole from behind.

In the case of the failure of the three messengers before and after, the northern capital Taiyuan stayed behind, and Cen Shen, who was also under the Zhongshu Sect, took the initiative to ask Ying, and went to the royal account of the King of Huijin Khan to discuss peace with him.

Li Siye nodded and agreed, anyway, if he wants to marry, he will marry the daughter of Li Tang's family, he is giving favors empty-handed, and he will not suffer at all.

Cen Shen and his retinue traveled all the way north, and finally reached the tent of the Jin Khan, where they met the ruler of the Hui, Gele Khan.

The Hui people also believe in the Central Plains' set of monarchical power, believing that the imperial family of the Heavenly Khan Li Tang is the legitimate ruler blessed by God, and they are naturally disgusted by a rebel like Li Siye, whose nose is not a nose, and his eyebrows are not eyebrows.

Gele Khan sat proudly on the white wolf's skin felt, raised his eyelids and looked at Cen Shen below and asked, "Which emperor of the Central Plains are you sending an envoy?" ”

Cen Shen replied calmly: "Of course, it is His Majesty the Emperor who sits in the Daming Palace of Chang'an with the year name of Yuanshuo. ”

"Where did you find the goods to pretend to be the emperor, can it be that one person can sit firmly in the three major halls? In my opinion, the only real emperors of the Tang Dynasty are Li Longji, who created a prosperous era, and Li Heng, who succeeded to the throne in Lingwu and set things right. ”

"Li Heng reused eunuchs, passively suppressed rebellion, lost morality and lost the hearts of the people, and has retreated to a corner of Jiangdong, which shows that His Majesty Emperor Yuanshuo is the real destiny of heaven."

Gele Khan suddenly leaned forward and said loudly: "Don't deceive yourself here, this one standing in Chang'an is just Li Siye's marionette, he will kill this puppet and usurp the throne and become the emperor sooner or later, when the time comes, he will be a usurped thief, what qualifications do you have to make peace with Ben Khan?" Immortal Heaven favors the Tang Dynasty Li and my Hui Khan, he is a fake surname Li, how is he qualified to accept this gift from God? ”

"Haha," Cen Shen laughed twice, looked at everyone's expressions, and continued to laugh loudly: "Haha, hahaha." ”

The warrior in the sweat tent drew his scimitar, and Gelkhan asked angrily, "What are you laughing at?" ”

"We Han people have a saying, reading history makes people wise, it seems that the Khan does not often read history to remember the past, but you will never forget how your father started, how to start ruling the vast land of Mobei, right? When the Turkic Khan was in the steppe, you Hui belonged to one of the nine tribes of Tiele and were ruled by the Turkic Khanate for a hundred years. After the former Turks were destroyed by the Tang Dynasty, you were divided into more than 20 prefectures under the rule of the Tang Dynasty, and after the Turks re-established the country, they switched to the Turks. Can I say the same thing? The true favor of the Immortal Heaven is the Turkic Ashina clan, and you are just traitors who have committed rebellion? ”

"Fart," retorted Hui Da Aijin, who was standing beside the Khan, "how can your master Li Siye be compared to my Khan, besides, we were an independent tribe before the founding of the country, although we were occupied by the Turks, we are constantly fighting, how can you be like your master, as the emperor's courtier and favored by the emperor, in the end he will betray the lord and usurp." ”

"The Uighur tribe is constantly fighting? You're talking about a hundred years ago, but what about a hundred years ago? ”

Da Ai Jin clasped his hands together and smiled: "Who can know what happened a hundred years ago." ”

"Of course I do." Cen Shen paced back and forth in the tent, chatting and laughing, and said: "Your Hui originated from Wei Su and Wuhu in the Tiele tribes, and at this time it was the Turks who dominated the grassland, and you were the Turkic ministers. Earlier you were active in the north of the Tianshan Mountains, known as Ding Ling, and at this time it was Rouran who ruled you, and the Han people called you Gaoche and Eile, and the Turks first unified you, and then they went to attack Rouran and dominate the north of the desert. Saying that you are not a subordinate of the Tubo people, and saying that you are independent and constantly resisting, can you still have a face? ”