First, the vast territory of our country has been determined. Take the early stage as an example. The Qing Dynasty was unprecedentedly powerful. On the basis of consolidating the territory of the Ming Dynasty, it expanded the northeast, Mongolia, northwest and other large areas. More importantly, it regained Taiwan Province Province by force, which made our mood worse today. Now the territory is shrinking.
Second, ethnic integration, the root of separatism was cut off. After the Qing Dynasty entered the customs, the Han culture was highly respected, and the marriage between Manchu and Mongolia made the tribes and Mongolians in the northeast begin to sinicize, and the concept of race became increasingly blurred, and the differences were reduced, which made it much easier to manage ethnic issues later.
Third, the corruption in the later period made us understand that the feudal dynasty would eventually perish and the martyrs began to explore the future.
Fourth, tell us with blood that if we fall behind, we will be beaten and wake up the world.