Well, China is a Superpower. I would say they control and influence much of the world and the economy. Heck, everything these days is made in China. The U.S. debt to China is $1.2 trillion, as of May 2017. If they request payment, it would pretty much destroy the U.S. economy as we know it. The have about 300 nuclear warheads and some are Hydrogen bombs. The have a thriving Space Program, not just to launch satellites, but they plan landings on the moon and missions to Mars. Largest conventional military in the world. Highly advanced, rich, and educated in some areas and also backwards, and poor in other areas. A lot like the Russians. Definitely don't want to piss them off. We want them as our friends. They could destroy North Korea economically if they wanted to.
Prospect for U.S. and Chinese relations...