Xinjiang is located in the center of Eurasia, with a length of 2,000 kilometers from east to west and a width of 1600 kilometers from north to south, with an area of1660,000 square kilometers, accounting for about16 of the national area. It is the largest province in China. Xinjiang borders eight countries (Mongolia, Russia, Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Pakistan and India), with a land border of 5,600 kilometers, accounting for 1/4 of the total land border of China. It is the province with the longest border and the largest number of bordering countries in China. Xinjiang is a strategic barrier to the northwest of China, an important gateway to China's opening to the outside world and an important base for China's strategic resources. The stability of Xinjiang is related to the overall situation of national reform, development and stability, and to the reunification of the motherland, national unity and national security. So Xinjiang has been an inseparable part of China since ancient times!