Girl Yue'e (Vietnam, Russia, Afghanistan) is very shy (Myanmar),

covered with a sheet and three blankets (Mongolia, Bhutan, Kazakhstan, Tajikistan, Kyrgyzstan) Stan),

Go through the mud (India, Laos, Nepal, Pakistan) to North Korea.

China’s border refers to China’s border line. Historically, there were no borders between China and most of its neighboring countries. The emperors of ancient China all respected the traditional concept that everything in the world belongs to the king. There are no border issues between China and neighboring countries in the modern sense.

With the introduction of the concept of sovereignty of Western countries and the invasion of Western colonists, the issue of sovereign borders became increasingly prominent, and the Qing Dynasty began to realize that it needed to defend its borders and the country. Under the aggression of Western colonists, China was forced to sign unequal treaties one after another and ceded large areas of territory.