What was the cause of Tianbao War?

The Tang Dynasty supported Nanzhao, hoping to use it to contain Tubo. After Nanzhao became powerful, the Tang Dynasty tried to control them. The death of the pilot, the contradiction between the two sides' succession to the throne, and the arrogance, violence, greed and cruelty of the border officials eventually led Nanzhao to rebel against the Tang Dynasty. After the confrontation between the two sides, the Tang Dynasty launched three large-scale wars in an attempt to destroy Nanzhao in one fell swoop. Nanzhao and Tubo troops jointly resisted. After the victory of Nanzhao, Tang Jun under the command of He Luguang returned, and then Tang Jun under the command of Yu Zhong and Shi Mi failed in Nanzhao. Because they all happened in the Tianbao period of the Tang Dynasty, it is called the Tianbao Battle in history, also known as the Tianbao Battle of the Tang Dynasty. After the war, Nanzhao belonged to Tubo. In the second year of Tianbao, Emperor Xuanzong of the Tang Dynasty accepted Yang Yuhuan as his concubine. From then on, he began to ignore politics, peace and happiness. Li, Yang successively took charge of the imperial court, which led to political corruption. At this time, the Nanzhao regime, which was originally a minister of the Tang Dynasty, clashed with the local authorities of the Tang Dynasty, which opened the prelude to a bloody war!

Nanzhao regime is located in the southwest, which is closely related to the Tang Dynasty. Li Longji, Emperor Xuanzong of the Tang Dynasty, once made Piluoji, the king of Nanzhao, the second-class official title, the king of Taishou County, and later the king of Yunnan. With the support of the Tang Dynasty, Nanzhao expelled the Tubo forces from Yunnan. After Pirog died, his son Luo Feng succeeded to his father's throne. When he visited Zhang Qiantuo, governor of Yunnan in the Tang Dynasty, he was insulted by officials in the Tang Dynasty. According to historical records, Zhang Qiantuo paid bribes to Ge Luofeng. After being rejected, Qian Tuo sent someone to scold and humiliate him, but he was still secretly playing with his sins. Ge Luofeng was very angry after hearing the news. He sent troops to attack and kill Qian Tuo, taking away all 32 people, Yaozhou and Xiaoyi. If the Tang Dynasty could distinguish right from wrong at this time, there would not be a large-scale war, but Prime Minister Yang wanted to be kind and lucky, make contributions to the frontier and establish prestige through war.

In the tenth year of Tianbao, Xian Yuzhong, the envoy of the Tang Dynasty, led 80,000 troops to levy Nanzhao. Ge Luofeng didn't want to go to war with the Tang Dynasty. He sent messengers to apologize and wanted to send the prisoners back, get a new life and live in the same city as Yaozhou. However, Zhong Tong, a fresh fish, was indifferent and sent the prisoner into Bobai Yucheng. As a result, Tang Jun suffered a crushing defeat in Xi 'er River in World War I, with 80,000 troops almost wiped out, and the commander-in-chief Xian Yuzhong survived. After the failure of the first expedition, Yang was ashamed of Yunnan's futility and lied about his military situation to the emperor, covering up his failure and victory. Since then, Yang has personally served as the special envoy of Ren Jiannan Festival. He dispatched troops and actively recruited soldiers to form an army of more than 65,438+10,000 people. Three years later, in the thirteenth year of Tianbao, Li Mi led 65,438+10,000 troops to conquer Nanzhao again.

This time Nanzhao adopted the strategy of consolidating the city and clearing the wild, guarding the city against danger and avoiding war. It was June and it was very hot. Most people in Tang Junli are northerners, so they adapt to the miasma of the dead and belong to the road. In addition, Tang Jun has a large population, so it is very difficult to supply. Although Shi Biao reluctantly brought the brigade at the foot of he cheng to he cheng, Tang Jun was at the end of the road. Xi Erhai, Nanzhao fought with Tang Jun, and lost to Dahecheng North, 18 or 9 died. Tang Jun was almost completely annihilated, and General Shi Biao threw himself into the river. Because it was Tianbao period, the war between Tang Dynasty and Nanzhao was called Tianbao War by later generations. The Battle of Tianbao, in which the Tang Dynasty lost more than 200,000 troops, was the most disastrous foreign war in the Tang Dynasty.