If you consider the current Chinese state to have continuity of legitimacy with the previous Chinese states, then you might also consider that all of those stat

If you consider the current Chinese state to have continuity of legitimacy with the previous Chinese states, then you might also consider that all of those states expanded by taking chunks out of their neighbors for thousands of years. To quote from the wikipedia article on Chinese Expansionism[1] "Chinese expansionism over the last four thousand years has been a central feature of the history of East Asia." [1] https://en.wikipedia.org/wiki/Chinese_expansionism https://en.wikipedia.org/wiki/Chinese_expansionism