Some info on the Chinese military. It's big, but it's mainly a threat to Russia (who China seems to be cozying up to lately) and, primarily, Taiwan. The chances of one of those 2.3 million Chinese regulars ever setting foot on American soil is about nil.
And honestly, I was sure that they had more troops. But, I did read a recent story that showed that they have far more nukes than I'd thought. So, I suppose the two balance each other out.