12 Squadron was formed in December 1939. On 16 June 1940 it flew the first SAAF bombing raid against Italian forces in Abysinna when it attacked the town of Moyale using Junkers Ju 86 bombers. 12 Squadron later saw combat during the Second Battle of El Alamein operating Boston light bombers. In May 1941 the squadron converted to the Martin Maryland, and moved to Egypt. From then until the end of 1941 the squadron formed part of No.3 Wing, and used its Marylands to attack Axis troop concentrations and bases. In January 1942 the squadron received the Douglas Boston, using these aircraft on the same roles from 15 March 1942 until the final German surrender in Tunisia. The squadron then moved to Malta, from where it supported the fighting in Sicily and on the Italian mainland, before moving to Italy in October 1943. Assigned to No. 3 Wing with 21 & 24 squadrons. The Bostons were retained until January 1944, when they were replaced with the new Martin Marauder. Both aircraft were used in a similar role, to attack enemy communications behind the front line, although the Marauder saw more service at day, and against strategic targets. After the war the squadron flew its aircraft back to Egypt, where in November 1945 it disbanded. Following the end of the war in Europe the squadron flew South African personnel home until it was disbanded. 12 Squadron was re-formed in October 1946 equipped with Avro Anson aircraft for anti-Tsetse fly spraying duties. It operated in this role in Zululand and Mtubatuba. The squadron was later re-equipped with Sikorsky S-51 helicopters that were at times also utilised in anti-Tsetse fly spraying duties, it but was eventually made a flight of 28 Squadron. The squadron was re-formed in late 1963 to operate English Electric Canberra bombers. It was the only SAAF squadron equipped with Canberras, and they were used as both tactical bombers and high-altitude reconnaissance aircraft. The squadron saw combat over Angola during the South African Border War, and remained active with these aircraft in 1981. 12 Squadron was disbanded in 1990. Two ex-12 Squadron Canberras have been preserved by the SAAF.
