Possible Aus/U.S.A. vs China war in the near future?

First of all China is not stupid to fight with USA and second of all why would anybody attack Australia?! I mean who cares about Australia. I think China is more interesting about Russia because of land and natural resources, plus Russia is closer then Australia. Trust me Australia is not even a problem for China don't matter what yall buy f 16 and all that **** yall guys will not stand even a week against Chinese army because China has 250 million man active and in reserve