From these airports and airfields in Australia, the Fifth Air Force was able to regroup, re-equip and begin offensive operations against the Empire of Japan after the disasters in the Philippines and Dutch East Indies during 1942.
Within a month, he had his command striving for, or at least seriously thinking about, seizing air superiority over New Guinea and parity over the Solomon Sea, and September 1942 saw the Fifth placing several dozen bombers over New Britain and Rabaul, whereas in July 1942 only mere handfuls could be fielded.
[1] By the end of August 1942, before the retreat began of the Japanese attacking over the Owen Stanley Ranges, he'd established five airfields at Port Moresby, more than necessary for its defense, but a good start for staging to forward bases.
Later, during the Cold War, the United States Air Force assigned a small number of personnel to Australia for communication duties and logistical support.
Today, USAF units routinely visit Australia for joint exercises with the Australian Defence Force, with a few personnel assigned for military liaison duties.
[13] In 1981, Australia and the United States agreed to station up to three B-52 and six KC-135 aircraft, supported by about 100 US Air Force personnel and associated equipment at RAAF Base Darwin.