Well china is one strong country they don't easily quit and russia is on their side so it's really tough of a country but really the United States will never be beaten by just those countries but really trump is a wise man he will get through this without war i hope so >.< but to truly understand why trump is accusing china a big problem is just to make china fall because its a big country and the most powerful of them and very crowded 
i hope war will not go with it
i hope war will not go with it It will be next to impossible for the United States to defeat a Russia-China alliance. If Trump is wise, he will wage war using proxies rather than declaring an open all out war against these two countries. But then, I don't think that there is a significant chance of any such confrontation occurring in the near future.