Is Japan partly responsible for the Chinese invasion of Tibet ?

[grapefruit]

First of all, Tibet was under Chinese's rule since the Ming Dynasty, although not direct rule, it is nominally under the control of the Chinese Empire. In the Qing Dynasty, the relationship between Dalai Lama (not today's) was very close to the Manchurian rulers of the Empire. Many Historians stated that it was the pirvate agenda of the Manchurain (the Royal family of Qing Empire) to separate the Hans, Mongolians, Tibet people, Muslisms, and other races of the Southwest areas of the empire in order to mandate the whole nation.

Does it mean Korea could be also claimed by China?