Established in 1913 and known as the 12th Infantry, Active Citizen Force, until 1928, when its full title became the Princess Alice’s Own Pretoria Regiment. It was formed from the Northern Mounted Rifles, the Pretoria Company of the Transvaal Scottish and the Pretoria detachment of the Transvaal Cycle and Motor Corps.

Mobilised in 1914, the unit served with the Northern Force in German South West Africa. The regiment mobilised two battalions for World War Two and served with 7 SA Brigade in Madagascar in June 1943. The unit later joined 6SA Armoured Division’s 11 Armoured Brigade as a tank regiment and received drafts from Regiment Botha and various Armoured Car units. For a brief period, in 1944, the unit was part of the British 24th Guards Brigade, then attached to the South African division. Two battalions were formed in 1946 but the second was disbanded in 1954.

The unit took part in the Border War, notably deploying a tank squadron at Cuito Cuanavale in early 1989.

Current Role: Tank regiment.
Current base: Pretoria
Battle honours:

• South-West Africa 1914 - 1915
• Madagascar 1942
• Italy 1944-1945
• Bagno Regio
• Sarteano
• La Foce
• Florence
• Gothic Line
• Caterelto Ridge
• Po Valley
• Cuito Cuanavale 1989

Motto: Nulli Secundus (Second to none, granted by Prime Minister Louis Botha after the South West Africa campaign.)