Qianlong Emperor - Frontier Wars

Frontier Wars

The Qianlong Emperor was a successful military leader. Immediately after ascending the throne, he sent armies to suppress the Miao rebellion. His later campaigns greatly expanded the territory controlled by the Qing dynasty. This was made possible not only by Qing strength, but also by the disunity and declining strength of the Inner Asian peoples. Under Qianlong, Dzungar Khanate was incorporated into the Qing dynasty's rule and renamed Xinjiang, while to the West, Ili was conquered and garrisoned. The incorporation of Xinjiang into the Qing empire resulted from the final defeat and destruction of the Dzungars (or Zunghars), a coalition of Western Mongol tribes. According to Qing scholar Wei Yuan, 40% of the 600,000 Zunghar people were killed by smallpox, 20% fled to Russia or Kazakh tribes, and 30% were killed by the army, in what Clarke described as "the complete destruction of not only the Zunghar state but of the Zunghars as a people." Historian Peter Perdue has argued that the decimation of the Dzungars was the result of an explicit policy of massacre launched by the Qianlong emperor (See Zunghar Khanate#Fall).

Throughout this period there were continued Mongol interventions in Tibet and a reciprocal spread of Tibetan Buddhism in Mongolia. After the Lhasa riot of 1750 he sent armies into Tibet and firmly established the Dalai Lama as ruler, with a Qing resident and garrison to preserve Chinese sovereignty. Further afield, military campaigns against Nepalese, and Gurkhas forced these peoples to submit and send tribute.

The Qianlong Emperor sought to conquer Burma to the south, but the Sino–Burmese War ended in complete failure. He initially believed that it would be an easy victory against a barbarian tribe, and sent only the Green Standard Army based in Yunnan, which borders Burma. The Qing invasion came as the majority of Burmese forces were deployed in their latest invasion of Siam. Nonetheless, battle-hardened Burmese troops defeated the first two invasions of 1765–1766 and 1766–1767 at the border. The regional conflict now escalated to a major war that involved military maneuvers nationwide in both countries. The third invasion (1767–1768) led by the elite Manchu Bannermen nearly succeeded, penetrating deep into central Burma within a few days' march from the capital, Ava. But the Bannermen of northern China could not cope with "unfamiliar tropical terrains and lethal endemic diseases", and were driven back with heavy losses. After the close-call, King Hsinbyushin redeployed his armies from Siam to the Chinese front. The fourth and largest invasion got bogged down at the frontier. With the Qing forces completely encircled, a truce was reached between the field commanders of the two sides in December 1769. The Qing kept a heavy military lineup in the border areas of Yunnan for about one decade in an attempt to wage another war while imposing a ban on inter-border trade for two decades. When Burma and China resumed a diplomatic relationship in 1790, the Qing unilaterally viewed the act as Burmese submission, and claimed victory.

The circumstances in Vietnam were not successful either. In 1787 the last Le king Le Chieu Thong fled Vietnam and formally requested that he be restored to his throne in Thanglong (Hanoi today). The Qianlong Emperor agreed and sent a large army into Vietnam to remove the Tay Son (peasant rebels who had captured all of Vietnam). The capital, Thanglong, was conquered in 1788 but a few months later, the Chinese army was defeated and the invasion turned into a debacle due to the surprise attack during Tết by Nguyen Hue, the second and most capable of the three Tay Son brothers. The Chinese gave formal protection to the Le emperor and his family, and would not intervene in Vietnam for another 90 years.

Despite setbacks in the south, overall the Qianlong Emperor's military expansion nearly doubled the area of the already vast empire, and brought into the fold many non-Han-Chinese peoples—such as Uyghurs, Kazakhs, Kyrgyzs, Evenks and Mongols—who were potentially hostile. It was also a very expensive enterprise; the funds in the Imperial Treasury were almost all put into military expeditions. Though the wars were successful, they were not overwhelmingly so. The army declined noticeably and had a difficult time facing some enemies: the Jin Chuan area took 2–3 years to conquer—at first the Qing army were mauled, though Yue Zhongqi later took control of the situation. The battle with the Dzungars was closely fought, and caused heavy losses on both sides.

At the end of the frontier wars, the army had started to weaken significantly. In addition to a more lenient military system, warlords became satisfied with their lifestyles. Since most of the warring had taken place, warlords no longer saw any reason to train their armies, resulting in a rapid military decline by the end of Qianlong's reign. This is the main reason for the military's failure against the White Lotus Sect, at the very end of Qianlong's years.