Briefly talk about the Tang Dynasty period, Tang 5 Huihe, Mohe, Nanzhao

After the demise of the Eastern Turks, the Uighurs, who had previously submitted to the Turks for many years, came under the control of Xue Yantuo. In 646, Tang united with Uighur to defeat Xue Yantuo. In the third year of Tang Xuanzong's Tianbao reign (744), after the Tang and Uighur coalition forces were destroyed, the Turks and Uighurs established their country. In the fifth year of Zhenyuan (790), the Tang Dynasty was ordered to change its name to Uighur. The Uighurs have always had a relatively good relationship with the Tang Dynasty, but during the Anshi Rebellion, they took the opportunity to blackmail the Tang Dynasty, and then joined forces with the Tang army to invade Luoyang City in 762, burning, killing, and looting. It was not until the fifth year of Emperor Wenzong's reign in the Tang Dynasty (840) that the Uighurs were finally destroyed by Jiajiasi because of their unjust rule and continuous conquests with the Jiankun people since 820. Forced to migrate, most of them moved south to Senei or near the fortress in the Henan area south of Yangshan to join the Khitans, and some moved west to Ganzhou (Ganzhou Uighurs), Xizhou (Gaochang Uighurs), Qiuci (Qiuci Uighur) and Congling merged into Geluolu (Dynasty of the Great Khan).

The Mohe people are a general term for the tribes living in the south of the Nahe River (south of the Nenjiang-Songhua River) in the three eastern provinces today. During the Sui and Tang Dynasties, they were divided into many tribes, including Millet, The seven tribes of Heishui, Baishan, Bodu, Funie, Haoshi, and Anchegu are more powerful. In 698, on the northeastern border, Da Zuorong, the leader of a few Sumo Mohe people who remained in the old territory of Goguryeo, took the opportunity to flee with his family and followers to the Liaodong Peninsula after the Yingzhou Rebellion in 696 and established a feudal monarchy - Bohai Kingdom (698-926). In 713, Da Zuorong accepted the title of King of Bohai County from Emperor Xuanzong of Tang Dynasty and established Huhan Prefecture. Although the Bohai State harassed the Tang Dynasty's borders and coasts, for example, in 732, the "Great Wu Yi" sent general Zhang Wenxiu to lead a naval force across the Bohai Bay to attack Tang Dynasty Dengzhou (Penglai, Shandong) and kill Wei Jun, the governor of Dengzhou. But in general, the monarchy of the Bohai Kingdom and the Han people in the Central Plains can be regarded as the "Cheshuben family", and there has been frequent interaction between them. Many Bohai aristocratic children have gone to Chang'an to study. In 726, the Heishui Governor's Mansion was established in the land of Heishui Mohe.

In the seventh year of Tianbao (748), Geluofeng of Nanzhao, the leader of the Six Zhaos, unified the Liuzhao in the southwest (located in today's Yunnan, western Guizhou, southernmost Sichuan and northern Myanmar), It even included present-day northern Laos. The relationship between the Tang Dynasty and Nanzhao State was also good and bad. After the founding of the People's Republic of China, Nanzhao defeated the Tang army three times and then cooperated with Tubo for a long time to attack the Tang Dynasty. However, after the 14th year of Dali (779) of Emperor Daizong of the Tang Dynasty, the combined forces of Tubo and Nanzhao failed to attack the Tang Dynasty. The strength of the Nanzhao army was severely damaged, and Tubo turned its anger on Nanzhao. The conflict between the two countries has deepened since then. In 794, the Tang Dynasty and Nanzhao met at Diancang Mountain to form an alliance, and the two sides established good relations. However, after the 820s, due to the decline of Nanzhao's royal power, war broke out between the two countries again. In 829, Nanzhao mobilized all its troops to attack the Tang Dynasty. In 830, they once invaded the outer city of Chengdu, but in the end they repaired it because they were afraid of retaliation after receiving news that the Tang army was rushing to reinforce it. After that, the relationship between the two countries continued to be alternating with wars and wars until both were destroyed.