Yuma War
The Yuma War was the name given to a series of United States military operations conducted in southern California and what is today southwestern Arizona from 1850 to 1853. The Yumans were the primary opponent of the United States Army, though engagements were fought between the Americans and other native groups in the region. Conflict generally took the form of guerrilla warfare, and, over the course of three years, the army engaged in pursuing unfriendly natives, protecting American settlers crossing the Colorado River and preventing conflict between the native tribes. A peace treaty in summer of 1853 was signed, ending hostilities between the Yuma and the United States, but it sparked a short war between the Yuma and the Cocopah. During the conflict, the historic Fort Yuma was constructed and became an important outpost on the frontier.
Sino-Burmese War (1765–69)
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. The Burmese, too, were preoccupied with the Chinese threat, and kept a series of garrisons along the border. Twenty years later, when Burma and China resumed a diplomatic relationship in 1790, the Qing unilaterally viewed the act as Burmese submission, and claimed victory. Ultimately the main beneficiaries of this war were the Siamese, who reclaimed most of their territories in the next three years after having lost their capital Ayutthaya to the Burmese in 1767.