In fact, we find that our country is really powerful, but we find that our rulers don't seem to be very keen on expanding our territory, so I find it strange, but there are reasons.

Let's talk about the Qin Dynasty, where we unified China for the first time. That was two thousand years ago. At that time, our economic and military development was not good enough. To be honest, I really didn't want to expand outward at that time. Even if we unify the whole country, we still need to make great efforts. And there were Huns at that time. Huns are very savage and brave, and we also need to pay a lot of experience to face them. Soon the Qin dynasty also perished, and I was thinking that if the emperor were still alive, it would seem that our territory would continue to expand.

Moreover, in fact, our dynasty has always been invincible, especially in the Tang Dynasty. Our territory is so powerful that its prestige is unimaginable, so no country around us can defeat us. Even in modern times, it was only because of our decline that we were defeated.

In fact, no country around our country can always beat us. Even now, we are a big country in the world, and a powerful country is far from us. To be honest, it's not convenient to attack.

So we have no rivals, and neighboring countries bow to us. Therefore, China, as a ruler, is not willing to blindly dismount all the kings of these countries and become one of their own to manage them. Honestly, it's inconvenient. Sometimes the site is too big, which is not a good thing, and it may be very troublesome to manage.