 Together, the two airfields house 121 Squadron, 112 Squadron, No 145 Squadron, the Field Defence Squadron, the Air Logistics Squadron and the Airfield Maintenance Squadron.The air base badge carries the motto "Together in Excellence".The area where Changi Air Base now sits was once a large encampment of British Army artillery and combat engineer units based in Singapore between the mid-1930s up until 1942, when the island fell under Japanese occupation after the British surrender that year.