What is "hsinbyushin"

Hsinbyushin (, ; ; 12 September 1736 – 10 June 1776) was king of the Konbaung dynasty of Burma (Myanmar) from 1763 to 1776. The second son of the dynasty founder Alaungpaya is best known for his wars with China and Siam, and is considered the most militaristic king of the dynasty. His successful defense against four Chinese invasions preserved Burmese independence. His invasion of Siam (1765–1767) ended Siam's Ayutthaya Dynasty. The near simultaneous victories over China and Siam has been referred to as testimony "to a truly astonishing elan unmatched since Bayinnaung." He also raised the Shwedagon Pagoda to its current height in April 1775.

The deputy commander-in-chief during his father's reunification campaigns (1752–1759), Hsinbyushin as king pursued an expansionist policy against his neighbors. By 1767, his armies had put down a rebellion in Manipur, captured the Laotian states, temporarily defeated Siam, and driven back two invasions by China. But his reckless decision to wage two simultaneous wars against China and Siam nearly cost the kingdom its independence. The third Chinese invasion of 1767–1768 penetrated deep into central Burma, forcing Hsinbyushin to hastily withdraw his armies from Siam. While the reinforced Burmese armies defeated the Chinese, and reached an uneasy truce in 1769, the Chinese threatened another invasion for another decade, and prevented Hsinbyushin from renewing the war with Siam.

The specter of war kept the state heavily militarized, setting the stage for army commanders to mistreat the population. In 1773, the army command provoked a rebellion by ethnic Mon troops, only to suppress the mutiny with "undue severity". The warlord behavior by local governors and army commanders only increased in 1774 when Hsinbyushin suffered from what turned out to be a long illness that would ultimately claim his life. In 1775, periphery vassals states of Lan Na and Manipur both revolted. He died in June 1776 while the Burmese forces were still engaged in Siam and Manipur. The Burmese armies withdrew from Siam right after his death, leaving Lan Na in Siamese hands.

While most of his military victories were short-lived, the present-day Burmese control of Taninthayi Region, northern and eastern Shan State and Kachin State is an enduring result of his reign.