Ten Great Campaigns in the context of Gyalrong people

The Eight Banners (in Manchu: ᠵᠠᡴᡡᠨ
ᡤᡡᠰᠠ jakūn gūsa, Chinese: 八旗; pinyin: bāqí; Wade–Giles: pa-ch'i, Mongolian: ᠨᠠᠶᠢᠮᠠᠨ
ᠬᠣᠰᠢᠭᠤ) were administrative and military divisions under the Later Jin and Qing dynasties of China into which all Manchu households were placed. In war, the Eight Banners functioned as armies, but the banner system was also the basic organizational framework of all of Manchu society. Created in the early 17th century by Nurhaci, the banner armies played an instrumental role in his unification of the fragmented Jurchen people (who would later be renamed the "Manchu" under Nurhaci's son Hong Taiji) and in the Qing dynasty's conquest of the Ming dynasty.

As Mongol and Han forces were incorporated into the growing Qing military establishment, the Mongol Eight Banners and Han Eight Banners were created alongside the original Manchu banners. The banner armies were considered the elite forces of the Qing military, while the remainder of imperial troops were incorporated into the vast Green Standard Army. Membership in the banners became hereditary, and bannermen were granted land and income. After the defeat of the Ming dynasty, Qing emperors continued to rely on the Eight Banners in their subsequent military campaigns. After the Ten Great Campaigns of the mid-18th century the quality of the banner armies declined. Their failure to suppress the Taiping Rebellion of the mid-19th century ruined their reputation. By the late 19th century the task of defending the empire had largely fallen upon regional armies such as the Xiang Army. Over time, the Eight Banners became synonymous with Manchu identity even as their military strength vanished.

The Qianlong Emperor (25 September 1711 – 7 February 1799), also known by his temple name Emperor Gaozong of Qing, personal name Hongli, was the fifth emperor of the Qing dynasty and the fourth Qing emperor to rule over China proper. He reigned officially from 1735 until his abdication and retired in 1796, but retained ultimate power subsequently until his death in 1799, making him one of the longest-reigning monarchs in history as well as one of the longest-lived.

The fourth and favourite son of the Yongzheng Emperor, Qianlong ascended the throne in 1735. A highly ambitious military leader, he led a series of campaigns into Inner Asia, Burma, Nepal and Vietnam and suppressed rebellions in Jinchuan and Taiwan. The most significant of his campaigns were directed against the Dzungars, bringing Xinjiang under Qing rule. During his lifetime, he was given the deified title Emperor Manjushri by the Qing's Tibetan subjects. Domestically, Qianlong was a major patron of the arts as well as a prolific writer. He sponsored the compilation of the Siku Quanshu (Complete Library of the Four Treasuries), the largest collection ever made of Chinese history, while also overseeing extensive literary inquisitions that led to the suppression of some 3,100 works.