the ChiComs view the Australia Outback as some sort of future Asiatic lebenstraum area
I doubt war would be confined to the Pacific; Iran would be enticed to heat things up with Russian help. The Russians could also exploit the situation in Europe and align more closely with Germany.
The Pentagon cant fight a 2 front war and everyone knows it. Its every man for himself dont expect help from traditional allies.
I also think its naive to think that wars will be fought with big naval battle groups and armies at less at the onset. Its more likely that we will see novel weapons and the use of proxy forces directed at civilians so that they there is plausible deniability.
These treaties were written in the 50s and 60s. The world and war are a lot different. Generals usually go to war with outdated strategy tactics and assumptions from the last war.