The historical documents of Tubo unearthed in Dunhuang Mogao Grottoes 1900 are the relics of the reign of Tubo in Dunhuang (786-848) and the oldest paper-based Tibetan documents. These volumes record the annual events of the Tubo dynasty in the form of chronology, and are the first-hand materials for studying the history of Tubo. There are three historical documents of Tubo in Dunhuang, which were smuggled overseas by Stein and Boccio and collected in the British Museum Library and the National Library of Paris respectively. Among them, Memorabilia recorded a war between the Soviet Union and the Tubo army in Wuhai in the Tang Dynasty, which was not recorded in the historical books handed down from Chinese to Tibetan. Wuhai: Now Donggai Cuona Lake in maduo county, Qinghai Province, also known as Tuosuo Lake and Black Sea, with an altitude of more than 4 100 meters, is located on the famous Tang-Fan ancient road.

From 65438 to 0940, famous Tibetan scholars Bao Kao and Thomas compiled and edited Dunhuang Tubo historical documents from the collections in Paris and London. After the 1980s, Yao Wang, a famous Tibetan scholar in Chinese mainland, went to Paris and London to proofread the original volume, and translated and annotated Dunhuang Tubo historical documents with reference to other relevant historical materials. At the same time, some contents have been added to correct the mistakes in Ba Cao, which is the first Chinese translation of Dunhuang Tubo historical documents in China. In 2000, Huang Bufan and Ma De's Annotations on Tubo Historical Documents in Dunhuang Tibetan Areas made a further textual research on the Tubo documents in Dunhuang on the basis of absorbing the latest research results. The Chinese translation reference of relevant translated works is as follows:

1. "In the Year of the Sheep (Gao Zongqing died in 659), Sapporo was stationed in Luyuan, Zagreb, and talked about Dongzan going to Gu Hun (Aji). In Tang Dynasty, Mangbuzhi, a wild goose in Wuhai, fought against the Soviet Union. Dayan is dead, too. Eighty thousand people are against one thousand. It is one year. "

Second, "In the Year of the Sheep (659, the fourth year of Emperor Gaozong), Zhaba was stationed in Luyuan. On the existence of dongzan in tuguhun. The wild goose Mambu was stationed in the east of Wuhai, where it fought against the Soviet Union. The geese died in battle, losing by 80 thousand to 1000. One year. "

The record of Tang Jun's crushing defeat in Wuhai has been included in the General History of China written by Fan Wenlan and Cai Meibiao and the History of Tubo published by 1989. In addition, Zhang Kun, a Chinese-American scholar, published an English book "An Analysis of Dunhuang Tubo Chronology" in 1959 (for its Chinese translation, see Selected Important Documents of Tubo in Tang Dynasty), which recorded that the population of Aga decreased from 80,000 to 1,000 when the geese died.

Although the Battle of Wuhai in Dunhuang suicide note is not recorded in handed down literature, Tang Jun's attack on the Tubo capital is recorded in many Tibetan history books. According to Tibetan officials' records, Lunbuga (Minister Gar Dongzan) led 100,000 Tibetan troops to attack Tang Jun, and Gar died in the army. Later, it was widely rumored that Tang Jun had entered Tibet, eager to welcome the statue of Jue 'a Shi Jia to Shenbian Temple and hide it in Nanjing Gate, sealing the door with mud instead of painting Manjusri. Soon, Tang Jun arrived and set fire to Potala Palace, but failed to welcome the Buddha statue of Jue 'a away. But to transport the immobile Buddha statue to a semi-predetermined place.

There is a similar record in New Red History. Gail (namely Lu Dongzan) led hundreds of soldiers to attack the Tang Dynasty and died in the army. Tang Jun went straight into Tubo and set fire to Hongshan. In 667 AD, Zi Tongzhi Bamboo Slips recorded the war of Tubo invading "Twelve Qiang States". It is worth mentioning that Guelton Zan and Su, the commander-in-chief of Tang Jun, who served as the ambassador to prevent Tubo in Anji after 663 years, both died in the second year of Ganfeng (667). If this record is true, then it seems that they have the possibility of fighting at this time (or he may send generals to Tibet). However, it can be seen from the records of Dunhuang suicide note, Tibetan princes and New Red History that in 670, a conflict broke out between Tang and Fan in the years before the Great Africa-Sichuan War.