Operating from Archerfield during the early stages of the war, the squadron undertook maritime patrols off Australia's east coast before converting to a dive-bomber role and taking part in the New Guinea campaign.
Later in the war, the squadron converted to Liberator heavy bombers and flew missions against Japanese targets in the Netherlands East Indies.
23 Squadron was first formed on 3 May 1937 at RAAF Base Laverton as a general purpose unit equipped with Avro Ansons and Hawker Demons.
23 Squadron reformed at RAAF Base Richmond in February 1939 and in late August of that same year it redeployed to RAAF Station Archerfield, operating Avro Ansons and De Havilland Tiger Moths on maritime reconnaissance and anti-submarine patrols off the east coast of Queensland following the commencement of hostilities with Germany.
[1] Between August 1940 and June 1943 the squadron continued to conduct seaward patrols and escorted shipping in the Brisbane region.
82 Wing RAAF,[11] the squadron deployed to Long Airfield in the Northern Territory in April 1945 and conducted bombing and anti-shipping missions over the Netherlands East Indies until the end of the war.
[1] Following the Japanese surrender the squadron's B-24s were based at Balikpapan in Borneo and operated in the transport role, flying ex-Prisoners of War and other Australian personnel back to Australia.
[13][14] The squadron ceased flying activities in June 1960 and assumed a ground training role for members of the RAAF reserve in southern Queensland.