China = modern CCP
Vladivostok was never part of any inherited territory dispute which CCP inherited from ROC who inherited from Qin. Settling border disputes is not analogous to ceding sovereignty, i.e. CCP has no issues settling 12/14 border disputes, most with more Chinese land concessions. But when it comes to core sovereignty issues like Tibet, XJ, HK, Taiwan, part of the century of humiliation narrative hole CCP has dug itself into, they do not compromise on or at least have sunk too much political legitimacy in the last 50 years to ever renege on. Historic exceptions being Mongolia and 11dash down to 9dash in the 50s, when CCP was an infant. Contemporary loose end is pretty much Arunachal Pradesh which CCP is willing to package swap for Aksai China with India which will also resolve Bhutan border.
