:: China do not have right to claim whole areas in Manchuria as exclusive Chinese only territory. Why? Because the treaty was signed between Qing & imperial Japan that both illegally occupied the land. Now, there are no Qing, just modern communist China and Japan conceded and lost their ownership of Korea, before there should be new agreement between two Koreas and China. Since North Korea is under no condition to discuss such matter, China should accept South Korea's demand and return the territory as good will otherwise, China will face another accusation on inner Mongolia and Tibet. Which cases, both territories are under illegal claims by China. Is current China is Qing Dynasty? No, and if there is going to be discussion then China must re-instate their past Qing Government and start the new discussion otherwise the Chinese claims is void and illegal.