[reed13k]

US CN
Active personnel: 1 281 900 2 300 000
Reserve personnel: 811 000 8 000 000
Available for military: 73 270 043 385 821 101

So there are currently 2.3 Million active Chinese military; however they can call upon 385M if they mobilize their civilian population.

[LadyDoc]

Comparing numbers of military personnel is tricky because not all soldiers are equal.

I advise you to read Jim Dunnigan’s book how to make war.

As for China, the real threat is their growing Navy, and their aggressive hacking spying and stealing intellectual property.