No. 23 (City of Brisbane) Squadron of the Royal Australian Air Force (RAAF) is a non-flying base operations and training squadron headquartered at RAAF Base Amberley near Brisbane, Queensland. The squadron was formed in 1937 and saw action against the Japanese during World War II as a bomber squadron. 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. After the war, No. 23 Squadron was used to reform No. 6 Squadron and was then re-raised as a Citizens Air Force unit based in Brisbane. Until 1960, the squadron flew jet fighter aircraft before converting to a ground support role and now forms part of the RAAF's Combat Support Group.