The Chinese nation has always been a nation with many disasters and difficulties, and such a huge disaster as the Ten Days of Yangzhou did not only occur in the late Ming and early Qing dynasties. The exterminating massacre of the Han Chinese by the Qing Dynasty was very similar to the "Nanjing Massacre" launched by the Japanese army in 1937. Therefore, many people believe that the Manchu Qing was the successful Japanese imperialism, and Japan was the defeated Manchu Qing. Because the barbaric means of slaughtering Han Chinese are so similar, such an analogy seems invulnerable, and the Qing Dynasty's occupation of the Central Plains was a naked invasion of the Central Plains.
Nurhaci's father and grandfather were all local officials of the Ming Dynasty, and the Ming Dynasty set up the Nuer Gandusi in the lower reaches of the Heilongjiang River, built shipyards and roads in the Songhua River valley, and recruited the leaders of the Jurchen tribes to pay tribute, which shows that the Ming Dynasty exercised state power in the Jurchen areas in northeast China. Therefore, the worst is to use the "national separatist rebel forces" in today's sense to define the historical position of the post-Jin regime. Therefore, of course, the Manchu Qing Jurchens were not foreign invaders, they were really ethnic minorities of the Ming Dynasty, and if they dared to say that the Jurchens were not ethnic minorities of the Ming Dynasty in the Ming Dynasty, they would wait for the heads to land!
Yuan and Qing, China in the classical sense, should be regarded as the fall of the country, but this kind of subjugation does not refer to the destruction of civilization, but only the demise of the rule of the Han Dynasty, the Han people have become second-class or even third-class citizens, but the Han culture and civilization are still continuing, although there are damages and infringements, but it has not died. Even if you don't like the history of the Yuanqing Dynasty, you can't erase the genes injected into these two periods in our culture today. Officials will never deny that these two dynasties are not Chinese, which hurts the feelings of ethnic minority compatriots too much and creates a pretext for ethnic separatists.
Before the Manchu Qing Dynasty came to power in the Central Plains, Nurhaci, the leader of the Jianzhou Jurchens, was the hereditary commander of the Ming Dynasty's "Jianzhou Wei", and although Nurhaci was a Jurchen, he and the Ming ruler belonged to two different ethnic groups in the same country. Later, Nurhaci unified the Jurchen tribes in the northeast, surrendered the Mongol tribes, established the Houjin, and created a powerful Eight Banner Army, laying a solid foundation for his descendants to constantly confront the Ming Dynasty and enter the Central Plains. Judging from this historical fact, the war between the founders of the Manchu Qing Dynasty and the Ming Dynasty was a war between one nation within a country and another national power. Therefore, I say that the Manchu Qing's entry into the Central Plains was a coup d'état, not an invasion, and there is a basis for it. Today's territory of our country is inherited from the territory of the Qing Dynasty. The Qing Dynasty unified the Mongolian plateau, and the Mongolian plateau is naturally an indivisible territory in China.