The steep topography and unique natural conditions of the Qinghai-Tibet Plateau have made the successive dynasties of the Central Plains covet this land, but they can only look away.

For example, the Tang Dynasty, which was powerful in the past, also sent large armies to wars with Tibet many times. But on the whole, there are more defeats and fewer victories, and the labor expedition has suffered heavy losses, and the gains outweigh the losses!

In the end, he had to be restrained in name, and did not send liuguan to form effective control over it.

However, although the terrain of Tibet is dangerous, by this time in 1239, its internal forces were no longer as strong as in the Songtsen Gampo period in the early Tang Dynasty.

Instead, it has become a scattered large and small force ...... each other

"As a Han Chinese, I actually want to follow the Mongolian expedition to the west" 0367 Liangzhou Huimeng is in the middle of the hand, please wait a moment,

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