which wars did the air force in which he served fought?
World War II.
Alister Murdoch
Ranked squadron leader at the outbreak of World War II, Murdoch took charge of No. 1 Air Observer School at Cootamundra, New South Wales, from April 1940 until mid-1941.
who was alister murdoch? A senior commander in the  RAAF.
wiki:2571677
Alister Murdoch [SEP] World War II
He was posted as SASO to the Australian First Tactical Air Force (No. 1 TAF) in April 1945, replacing Group Captain William Gibson after the latter's dismissal in the wake of the "Morotai Mutiny", when the threatened resignations of eight of the RAAF's leading fighter aces caused a crisis in the formation's leadership. Delegated operational responsibility by No. 1 TAF's new Air Officer Commanding, Air Commodore Frederick Scherger, Murdoch received much of the credit for the "excellent" planning of the RAAF's role in Operation Oboe Six, the invasion of Labuan. He accompanied Scherger ashore on the afternoon of the landings on 10 June 1945.