Interesting idea that China turns fascist if the Nationalists win the Chinese civil war. Still, I don't see them being able to take the USSR's far eastern territories, the Soviets would drive them back and launch a counter invasion which would see the Nationalists fall from power.
I do see the Communists losing in Korea and Vietnam though. Also, Nationalist China wouldn't be fascist forever. They'd likely over time become democratic like Taiwan did in our timeline.