China wouldn't even make it to the mainland if they tried to invade us. It's a complete mismatch. That doesn't mean they aren't on the path to be able to compete in the future, which I think is one of the scariest threats out there. If you have a country with 700,000,000 more people, and they start mass producing weapons and military technology, you might get yourself in trouble. But anywhere in the next two decades or so, they wouldn't get a boot on our land. Our military is pretty amazing as a military, and still amazing as a police force, but just sucks that we use them that way.