No. 1 Airfield Operations Support Squadron (1AOSS) is Headquartered at RAAF Base Townsville. The squadron has detachments at each of the major RAAF Bases around Australia. It is responsible for providing fixed-base and expeditionary Air Movements support, Explosive Ordnance Disposal (EOD) functions, Airfield Engineering, including vertical and horizontal construction capabilities, and 3rd line logistics support to the RAAF's Expeditionary Combat Support Squadrons.