Our partnership with he US is a one way contribution. Australia pays tribute to the US in the form of overpriced defence contracts. The US has a policy of having forward bases well away from the home country. These bases become the first line of attack. Think about Darwin, Alice Springs, Rockingham.
The US will not attack Iran because it is concerned about Iran possibly getting nuclear weapons. It will attack Iran in order to stop the supply of oil from Iran to China. This will be just another "oil war"
