Introduction to the history of Khun Sa: Khun Sa's Chinese name is "Zhang Qifu", his Burmese name is "Guan Yue", and "Kun Sa" is his Thai name. In 1949, the remnants of Chiang Kai-shek's 8th Army and 26th Army, which were defeated by the People's Liberation Army in the Liberation War, fled from Yunnan to Burma and stationed themselves in the Golden Triangle area. These defeated troops used opium to solve their source of supplies. Since then, opium cultivation in the Golden Triangle has entered the stage of "large-scale development" from small-scale production by each household. At this time, Khun Sa saw the great prospects of the drug business, sneaked back to the Golden Triangle from Thailand, married the daughter of a leader, and soon became his father-in-law's right-hand man. Kunsha saw that the strongest force at that time was still the remnants of the Kuomintang army. During a conflict between his tribe and the Kuomintang army, he personally killed his father-in-law and asked for rewards and alliance with the Kuomintang army. Later, he used various means to pull and beat him. After fighting, they integrated all the nearby small gangs and established a unified army and a relatively independent territory in northern Myanmar. After gaining territory, Kunsha began to flex his muscles in the drug business. In addition to drug trafficking, Kunsha also smuggled gems and arms. Khun Sa continued to expand his army, which reached more than 20,000 people at its peak. He set up checkpoints and collected various taxes and fees within his jurisdiction. The Golden Triangle became a "state within a state." Khun Sa once established the Shan State Parliament in the Golden Triangle region and established a government with multiple ministers. In 1994, he publicly announced the establishment of the Shan State Republic. He became the president himself and his army was called the Shan State Revolutionary Army. He used the money from drug trafficking to continuously update weapons and equipment, and his weapons have always been more advanced than those of the Myanmar government army. As the proliferation of drugs has aroused vigilance and indignation around the world, many countries have reached a consensus on eradicating drug manufacturing and drug trafficking. The Myanmar government launched a large-scale attack on Khun Sa's "Shan State Revolutionary Army". Khun Sa was defeated in 1998 and his army surrendered to the Burmese government. Khun Sa has since retired to Yangon. Died of illness in Yangon on October 26, 2007.