It helps to know about the resurgence in Tianxia[1] ideology in China. It's vaguely analogous to the old American concept of Manifest Destiny, but with, of course, a much longer history and far greater scope. What it basically comes down to is that in the pre-Westphalian era the Chinese world view was that China had sovereignty over everything under heaven. The Great Game dealt that world view a pretty harsh blow, but the Chinese people persevered and through industry and shrewdness have restored themselves to something like their historical standing. I don't expect them to stop here. Influence is almost as much of a drug as power, and testing it is self-reinforcing. Look at how China is making the NBA their whipping boy for another example.

[1]https://en.wikipedia.org/wiki/Tianxia