Pine Gap
In the late 1960s, a treaty was signed between the United States and Australia to establish a joint intelligence facility to monitor and track Soviet missile capabilities. Whilst most activities are highly classified, it is widely known that, more recently, Pine Gap controls satellites which are used to monitor world affairs for the US, as well as controlling surveillance systems, missile defence systems, air-warfare,  battlefield intelligence, space warfare   , and drone warfare .   There is a question regarding the need for US involvement in this facility as Australia has a fully capable computer and intelligence infrastructure and other allied states run similar facilities without US interference.