Interesting points made by Gwynne Dyer on Asian dynamics among several powers and China. Apparently the growing "might" of China is causing enough alarm and concern to Japan, India, the US and Australia to cause them to want to form some sort of unofficial alliance and work together. Of course the situation is not as simple as it sounds like here. However that doesn't mean that the gist of it isn't correct. I've read of the US desire for a stronger India acting as a counterpart to neighboring China in several sources. As Dyer and others have written, that is what the US nuclear deal with India in 2005 was about as the cooperation offered by the US was very significant.
China isn't trying or going to be very belligerent (except over Taiwan) as they have been increasing cooperation and agreements with many of its neighbors especially SouthEast Asia. It's no secret that China is trying to upgrade and strengthen its military but so what? Why is this not allowed, why is there so much furor over China's military spending when much smaller England and France spend just as much or even more. If there is any evidence that China will use its military to attack or invade any other country, then that'd be a very serious concern.