Interestingly, it turns out there's a wikipedia article about China's border disputes already: https://en.wikipedia.org/wiki/Territorial_disputes_of_the_People

Interestingly, it turns out there's a wikipedia article about China's border disputes already: https://en.wikipedia.org/wiki/Territorial_disputes_of_the_People%27s_Republic_of_China https://en.wikipedia.org/wiki/Territorial_disputes_of_the_Pe... They seem to have disputes with about half of the countries on their borders (land and maritime). That's a fair few. :/