What happened to the courage of China and Myanmar? Detailed.

Courage-Myanmar calls the Han nationality in Myanmar courageous. Kokang area-At first, residents in Kokang area made a living by growing opium. Later, civil strife broke out in Myanmar. Decades later, a man named Peng Jiasheng took control of the Kokang area and signed an agreement with the Myanmar government to conditionally implement autonomy in the Kokang area. Chinese is used in Kokang area, Yunnan area code and cell phone signal are also signals of China Mobile. In this incident, some people suspect that there are behind-the-scenes forces, manipulating the Myanmar government to crack down on the Kokang regional government and trying to regain actual control. Initially, the Myanmar government tried to search a weapons factory under the name of Peng Jiasheng, but it was rejected. Then the two sides confronted each other. The Burmese government sent troops to raid Peng Jiasheng's residence, but no one was arrested. In addition, the Kokang Army controlled by Peng Jiasheng also experienced civil strife, and some officers and men took refuge in the Myanmar government. Anyway, it's a mess over there now . . . Some people think that the Kokang area is a springboard for China to expand its strength in Southeast Asia, and China needs to ensure the safety and stability of this springboard.