(I went to register my marriage this morning, and I went to a meaningless conference in the afternoon, and there will be a lot of things in the next two days, and the chapter owed must be made up this week.) )

When it comes to the middle and late Tang dynasties, we can't help but talk about Shatuo. Sha Tuo you may not know, Li Keyong can you not know? Li Cunqiao, can you not know? I don't know, what about Yashi Jingjiao? Shatuo is another part of the Western Turks, that is, the Shatuo Turks. Tang Zhenguan lived in the south of Jinsha Mountain (now Nichijin Mountain) and east of Puzihai (now Balikun Lake in Xinjiang). In its territory there is a large moraine (now Gurbantunggut Desert), because of its name.

In the fourth or fifth year of Tang Yonghui, in the process of conquering the rebellion of the Western Turkic Ashina Helu, Tang placed Jinman in the land of the moon and the second state of Shatuo. In the second year of Chang'an of Wu Zhou, the chief of the month of Changshatuo Jinshan was awarded the governor of Jinmanchu Prefecture for his meritorious service in the conquest of Tiele. Later, due to the forced force of Tibet, the son of Jinshan, Fuguo, led his troops to migrate to Beiting. After the Anshi Rebellion, Beiting was isolated from the mainland, and those who came to Chang'an by way of the Shatuo in the area suffered from the violence of the Hui. In 789~790, Shatuo attached 7,000 tents to Tibet and fell to the north court. Later, Tubo moved to Shatuo in Ganzhou (now Zhangye, Gansu), and took the auxiliary grandson Zhu Xie to be loyal to the army. Tubo attacked the Tang Bian, often with Shatuo as the striker. In 808, when the Uighurs took Liangzhou (present-day Wuwei, Gansu), the Tibetans suspected that Shatuo had colluded with the Uighurs and planned to relocate their troops to the west of the Yellow River. Zhu Xie and his eldest son Zhu Xie Zhiyi discussed leading the troops to reattach to the Tang Dynasty, and in 808 led 30,000 troops to surrender to the Tang Dynasty. Tang placed the Shatuo Department in Yanzhou (now Dingbian, Shaanxi), set up the Yinshan Governor's Mansion, and took Zhiyi as the soldier and horse envoy, and the Shatuo scattered everywhere returned to the ministry one after another, and the power increased.

The Tang Dynasty was close to Tibet with Shatuo, considering its recurrence, and with its many departments, it would make the price of grain on the border rise, so when the Lingyan Festival made Fan Xichao move to the east of the river, Zhao Shatuo raised an army from the east of the river. Fan Xichao selected 1,200 brave horsemen and called them "Shatuo Army", and the rest were placed in Dingxiangchuan (now in the area of Mumahe, Shanxi); Later, the Tang Dynasty divided its people into states to weaken its power. Tang Xianzong used troops against Chengde Wang Chengzong, Huaixi Wu Yuanji and Wuzong used troops against Zelu and Liu Zhi, and Xuanzong against Tubo, Dangxiang, and Uighurs, all of which were helped by Shatuo. During the reign of Tang Yizong, Zhiyizi led the cavalry to help Tang suppress the Pang Xun uprising, and was awarded the Datong Army Festival Envoy, given the surname Li, the name Guochang, and later moved to Yanyan for helping Tang resist the Uighurs, and Zhenwu Jiedu envoy, but was attacked by Tuyuhun and retired to Shenwuchuan. In 876, his son Li Keyong attacked Yunzhou (now Datong, Shanxi). The Tang Dynasty used the Northern Tuyuhun chieftain Helian Duo and Youzhou Jiedu to make Li Keju repeatedly attack Li Guochang and his son. In 880, Guochang's father and son fled to the Tatar tribe after their defeat. After the Huangchao rebel army invaded Chang'an, the Tang Dynasty recruited Li Keyong to lead Shatuo and the Tatar army to help. In 883, Li Keyong led the army to defeat the rebel army at Liangtianpi, Huangchao withdrew from Chang'an, and Tang Keyong was the envoy of Hedong Jiedu. After Tang used Li Keyong to suppress the Huangchao rebel army, Zhu Wen won Bian, and Keyong used Taiyuan, forming a situation of Zhu and Li disputes, and after a long period of attack, Zhu Wen weakened Li Keyong. In 907, Zhu Wen overthrew the Tang Dynasty and established the Later Liang. In 923, Keyongzi Li Cunqiao destroyed the Later Liang and built the Later Tang Dynasty. Shi Jingjiao, who later established the Later Jin Dynasty, and Liu Zhiyuan, who established the Later Han Dynasty, were also from Shatuo. In a sense, if there were no Shatuo people, then history might have gone the other way.

Now, in the third year of Yongzhen, it was 808 A.D., when the newly crowned Uighur Khan Aidenli Luo Mimi Shihe Kunga Baoyi Khan was excited and burned three fires and attacked Liangzhou. Annoyed, Tubo set his sights on the Shatuo people. Since the establishment of Dezong and the first year of Shatuo's 7,000 accounts were attached to Tubo, after more than 20 years of reproduction and development, Shatuo's strength is getting stronger and stronger, even if there is no current thing, the Tubo people will find an opportunity to clean up Shatuo, and now the opportunity has come, can the Tubo people let it go?

Anyway, Fan Xichao, who had been in the border for a long time, smelled a hint of smell, and the Tibetans intended to make a move on Shatuo, and the Uighurs could no longer accept Shatuo, so Shatuo could only ask Tang for help. When Du Huangshang was in the border area, Fan Xichao talked to Du Huangsheng, and in April, he wrote a special letter requesting that if Sha Tuo turned his back on Tubo to vote, he asked the imperial court to allow Sha Tuo to return.

Li Yu's first reaction to receiving Fan Xichao was no, Li Keyong, Li Cunqiao, Shi Jingjiao, Liu Zhiyuan and a series of Shatuo people's names he knew very well, but whether Li Chun or Du Huangshang-Du Huangshang had returned to Chang'an-Li Jifu, Pei Yan, Li Xun or Li Jiang, Pei Du and others, they all thought it was acceptable, and their reasons were also very good, firstly, we should try our best to support things that could weaken the enemy, and secondly, Shatuo could not be regarded as a betrayal of the Tang Dynasty at the beginning, and Beiting had actually been controlled by the Uighurs after the Anshi Rebellion, The Uighurs were nominally canonized by the Tang Dynasty, but in fact they were a state of their own, and the Tang Dynasty had long ceased to be the suzerain, and the Uighurs were too hard to squeeze Shatuo, so Shatuo surrendered to Tibet. Ah Q said that Shatuo could only say that he had turned his back on the Uighurs, but not on his back to the Tang. As for the fact that Shatuo repeatedly invaded the Tang Dynasty for the sake of Tibet in the next 20 years, it was not a big problem. In short, the enemy's subordinates should not be turned away under any circumstances.

Li Yu admitted that the words of the princes, the prime ministers, and the Hanlin were all very reasonable, and they were the best choice at this historical point. Li Yu has no excuse to veto their proposal, as for the non-my race, its heart must be different, and other issues, for the Tang people do not exist at all, the Li family itself has Hu blood, since the Tang Dynasty, it is not one or two who have made great contributions to the Hu people, although there is An Lushan, but there are more Ashina Simo, Qi Bi He Li, Li Duozuo, Ge Shuhan, Li Guangbi, and now there are Ye Shi Liangfu, Adie Guangjin, Adie Guangyan brothers, etc. What can Li Yu say? Because he came from the future, he knew that Shi Jingjiao would cut the sixteen states of Youyun to the Khitan?

Li Yu seemed to be angry, left Fan Xichao's recital, put it aside and did not deal with it, and was busy with other government affairs on his own.

In May, Hedong Jiedu made Yan Shou, and Chen Xu Jiedu made Liu Changyi successively summoned to the court, Yan Shou served as a servant, and Liu Changyi served as the secretary of the criminal department. Imperial historian Li Element served as the envoy of the Hedong Festival. Liu Changyi was smart, knew the reason why the emperor recruited him into the court, and slowly moved forward along the way, Li Yu understood his worries, and sent the imperial historian Li Yijian to meet him, and Liu Changyi arrived in Chang'an happily.

However, the courtiers obviously could not tolerate Li Xu's deliberate act of pretending to forget about slacking off state affairs, especially after Huang Shaoqing, the barbarian chief of Xiyuan, asked for surrender and Li Yu used him as the assassin of Guishunzhou. At this time, the Shatuo people, thousands of miles away, had begun to secretly collect people, horses, cattle and sheep, preparing to surrender to the Tang Dynasty in the east.