I can't blame China for wanting Taiwan back. Imagine if we had a civil war and a foreign military invaded and occupied Alaska during a war just before it. Then at the end of the war one side fled to Alaska and declared it independant but we couldn't retake it because we were so debilitated from the civil war and the war before it. Now a foreign government steps in and says you can't retake your territory because they said so. I'd be pissed too.