Why did Manchu conquer Mongolia, Xinjiang and Tibet? From the early Qin dynasty to the Qing dynasty, only the Qing dynasty could do this for more than two thousand years.

Conquest between countries must be supported by interests, and war without interests will not happen. And there are many benefits, such as land, people, strategic location, trade and so on.

First of all, let's look at Xinjiang, which is the Xinjiang generation today. People lived as early as the Han Dynasty, didn't they? As for the Qin dynasty, there was no occupation, because the Qin dynasty existed for a short time, during which domestic contradictions were too fierce, foreign wars could no longer be carried out, and the corvee was too heavy for the people to afford. At other times, the national strength was basically not allowed, or the internal conflict was too serious. Did the Tang Dynasty also occupy it? As for Daming, partial control, generally speaking, southern Xinjiang is not beneficial, and northern Xinjiang is also very important based on its strategic location and trade hub.

Look at Tibet again. To tell the truth, there was nothing to make money in that ancient place. Crops can't grow, they are not suitable for immigrants, and trade can't pass through them. Why did you say you would come? Only when social transportation is extremely convenient now will it gradually become beneficial, especially for India. When we leave the Qinghai-Tibet Plateau, we will see an Indian plain in Ma Pingchuan. I can play wherever I want. It's just a quick drive, so I pay more attention to Tibet now. As for history, except for a period when Tubo flourished in the late Tang Dynasty and early Song Dynasty, Tibet posed little threat to us. On the whole, there seems to be no threat. Yuan who conquered her in history was a Mongolian militant. As for the Qing dynasty, the number of ruling classes was small, and they were all Manchu. How much do you want? Therefore, the policy of the Qing dynasty was to contact all forces that could be linked to suppress the Han nationality and isolate the Han nationality, whether it was early Mongolia or Xinjiang.

Finally, speaking of Mongolia, I really can't think of anything worth robbing on this prairie. It wastes people's money and is not suitable for living. When people go, they will suffer and can't farm. This is the absolute disadvantage of ancient agricultural society. Failure in farming means failure to get in. It is difficult for the central government to afford such a large area of expenses. But in modern times, this piece is still good, at least it can increase the strategic depth. At the beginning, the Soviet Union's independence from Mongolia was to attack our strategic depth.

Let's talk about whether China is weak or not. No! Aren't we soldiers? Rites, music, shooting, imperial, calligraphy and numbers are all included in the six arts. Isn't it martial law Why did Qin unify China and resist the Huns? Qin Jun! This is not a brush. Isn't it martial law Isn't it a martial art for the Great Man to fight Xiongnu in the West? Since ancient times, we are all militaristic China people, but we have been distorted by some corrupt literati. The ancient gentleman's sword was not only used for decoration, but also for dueling, only to lose its blood in the later peace. Since ancient times, China has been ruling the country by force and by civilization, and both of them go hand in hand. Every dynasty suppressed the military attache group, but the military attache group never declined.

As for what you said, why don't we conquer? On the one hand, it is the interest mentioned above, on the other hand, it is culture. The Central Plains dynasty has always been proud of the world, and it disdains to conquer foreign countries. It can and will fight, but I will come back after the battle. You just have to pay tribute to me, and we don't want to be a foreign land. This seems to be a weakness today.

I wonder if my answer can help you.