A famous battle in history, that is, the Battle of Annan, took place during the Qianlong period and was a battle between the Qing Dynasty and Vietnam. China's ancient history had its glory and decline, but the Qing Dynasty was still very backward in history, because it closed its doors to the outside world and was later opened by foreign invaders. So how did the battle of Annan happen?
Annan, known as the rubber sole in ancient times, is connected with China, Yunnan and Guangxi, and faces Guangdong across the sea. Since Ming Yingzong established Li Lin as the Queen of Guo, although her political situation has changed several times, Li has still been in power for generations and maintained close suzerain-vassal relations with the Ming Dynasty. In the 16th year of Shunzhi in Qing Dynasty (1659), the Qing army pacified Yunnan, and King Guo of Annan sent messengers to comfort the officers and men of the Qing army.
In the seventeenth year of Shunzhi (1660), Li Weiqi, king of Annan, officially went to court and paid tribute to the real thing. An important step has been taken on the road of establishing the relationship between suzerain and vassal. Since then, the two countries have had close contacts, and Annan Lee's tribute is endless. However, on the grounds of the old system, King Annan refused to hand over the stamps issued by the Ming Dynasty to the Qing court in exchange for the stamps issued by the Qing Dynasty, and the two sides had differences.
In May of the fifth year of Kangxi (1664), under the strong pressure of the Qing court, Li Weixi, king of Annan, began to give Nanming gold seals in May of the fifth year of Kangxi (1664). The argument is over. Emperor Kangxi immediately sent a special envoy to Annan, conferring Li Weixi as king of Annan. In the seventh year of Kangxi (1668), at the request of Annan king Li Weixi, the tribute period was changed from three years to six years. The fixed tribute period marked the formal establishment of the relationship between China and Angola.
Since the suzerain-vassal relationship has been established, both sides should fulfill their respective responsibilities and obligations. As a vassal state of the Qing dynasty, Annan "was a minister in the DPRK, but only paid tribute to his duties." As far as the Qing Dynasty is concerned, it mourned the death of King Annan, sent envoys to offer sacrifices, and the new king ascended the throne to pursue the seal, and paid rich tribute to maintain the stability and consolidation of Li's rule in Annan.
In the fifty-third year of Qianlong (1788), Ruan was usurped by Annan, challenging the suzerain-vassal system. In the fifty-third year of Qianlong (1788), in April of the lunar calendar, Guangnan Nguy?n Hu? led the troops into Licheng, and King Li Weiqi started his career. Under the protection of ministers Ruan and Li Jiong, more than 200 people, including his mother, wife, prince and clan, boarded the ship from Gaopingfu and fled to Douliguan, Longzhou, Taiping, Guangxi for help, risking their lives to wade to the north shore. There are 62 men, women and children crossing the river. Those who failed to cross the river were killed by the pursuers on the south bank.
Sun Yongqing, the governor of Guangxi, got the news and immediately reported the situation. Emperor Qianlong thought that Li Chuanguo had been a long time, and submission to China was the most submissive. Now, he was suddenly usurped by a powerful minister, which cannot be ignored. Sun Shiyi, Governor of Guangdong and Guangxi, was ordered to inquire about this matter in Longzhou, Guangxi. It shows the determination of Emperor Qianlong to maintain the suzerain-vassal system and return the country to Li.