Qianlong Emperor

Qianlong launched a series of military campaigns to expand and secure the Qing empire. These included conquests in Xinjiang, Mongolia, Tibet, and Burma. The campaigns doubled the empire's size but drained the treasury and caused heavy casualties.

Qianlong's forces destroyed the Dzungar Khanate in Central Asia, incorporating Xinjiang into the Qing empire. The campaign involved the massacre of many Dzungar people. This victory eliminated a long-standing rival and secured the western frontier.

Qianlong ordered the compilation of the Siku Quanshu, a massive collection of Chinese literature. Over 3,000 scholars worked for a decade, producing 36,000 volumes. It preserved thousands of texts but also involved censorship of works critical of the Qing.

Qianlong received a British diplomatic mission led by Lord Macartney. The British sought trade concessions, but Qianlong rejected them, stating China had no need for foreign goods. This event highlighted the Qing's isolationist policy and growing technological gap.

In his final years, Qianlong's forces struggled to suppress the White Lotus Rebellion, a popular uprising fueled by corruption and poverty. The rebellion lasted until 1804, exposing the decline of the Qing military and administration.