The Republic of China (ROC, often known simply as "Taiwan") and the People's Republic of China (PRC) both claim to be the sole legitimate government of all of China. But the two polities have different notions of what "all of China" means in geographical terms.

There is clearly a great deal of territory that the ROC considers, or once considered, to be part of China that the PRC does not. (For instance, until about 20 years ago, the ROC considered the entirety of Mongolia to be its own territory.) But conversely, are there any territories that the PRC does claim to be part of China that the ROC does not claim to be part of China? If so, what are they?

  • It seems to me Taiwan actually recognized Mongolia as an independent country, albeit in 2002, but since then "excludes Mongolia from the official maps of the Republic of China".
    – Fizz
    Oct 4, 2021 at 9:19
  • Fair enough; I will amend the question accordingly. Though I'm sure there are other territories claimed by the ROC and not the PRC.
    – Psychonaut
    Oct 4, 2021 at 10:15
  • I'm not sure what Taiwan's stance is on the sea/ islands emcompassed by the 'nine-dash line' but that could be a candidate.
    – quarague
    Oct 5, 2021 at 6:50
  • "both claim to be the sole legitimate government of all of China." In what way does the ROC still make that claim? When was the last time they said it? From what I have seen the ROC no longer considers itself the government of China. I think to get an accurate answer you need to be clear what you mean by "claim".
    – Readin
    Oct 24, 2021 at 22:35
  • @Readin Notwithstanding the fact that they no longer make a big deal about it, the claim is still valid insofar as it hasn't been formally disclaimed. The constitution, as amended, still refers to the "existing national borders" from 1947 and distinguishes between the "free" and occupied areas. And certain official maps, such as the one on the emblem of the Marine Corps, still show the greater borders. Nonetheless, feel free to pretend my question was written at the most recent time the ROC explicitly affirmed its claim.
    – Psychonaut
    Oct 25, 2021 at 5:30


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