On the 1 July 1912, the South African Military School was established in the old President's residence in Bloemfontein. The school's name was changed to The School of Musketry on the 1 November 1912 and moved to Tempe in Bloemfontein. On the outbreak of the First World War in 1914, the school at Tempe was closed and all the members of the staff were transferred to Potchefstroom. These staff members were responsible for the next number of years for the training of volunteers for overseas duty. During 1920, the South African Military School was established at what was then called Roberts Heights. The college was granted the status of School in 1924 as a result of the training of the first group of permanent force Officer Candidates. The school was enlarged just after the outbreak of the Second World War in 1935 with the creation of the following branches:
G Branch
Weapon Training Branch
Signals Branch
Training Depot
National Reserve Volunteers
Research and Development Branch
Chemical Warfare Branch
Regiment Training
Armour Branch
During the 1940-1945 years, certain of these branches were moved. The Regimental Training was taken over by the Weapon Training Branch for example. It was during this era that the idea was mooted that there should be an independent Infantry School. In November 1953 the Weapon Training Branch was officially renamed the Infantry School in terms of SADF order No. 206/53, but this renamed unit remained an integral part of the South African Military College. On 1 October 1963, after having been a ghost unit for almost 10 years, the Infantry School was finally established as a self accounting unit. At this stage and until 1 January 1964, Maj J. H. Rossouw, SAIC, was appointed Acting Officer Commanding. It was during this period that the decision to move the Infantry School to Oudtshoorn, its present location, was taken.
Oudtshoorn
On 1 January 1964 the new, fully fledged Infantry School opened its portals in Oudtshoorn to admit its first students under the command of Cmdt M. N. Horner, SAIC. Since that day, the School has undergone two major metamorphoses. The first being in January 1974 when, in addition to its established role, it assumed the role of the unit where National Servicemen Junior Leaders were trained. The second occurred in December 1976 when it was decided to remove virtually all Citizen Force courses from the School and transfer them to the Danie Theron Combat School in Kimberley. In January 1977 another historic event occurred at the Infantry School that is the advent of the first prospective Cadet Officer intake of then recently qualified teachers. In those years, the unit had shouldered its share of the burden of duty in the operational area. Later on it had become policy to send companies of National Servicemen to the operational area as part of their training as Junior Leaders. 1977 was an important year in the school's history as they received their Colours on the 1 October 1977 and were granted the Freedom of the City by the City Council of Oudtshoorn. On the 28 March 1980, the Infantry School received its own song from the well known Dirkie and Doll de Villiers. The song was handed over to the Commanding Officer, Col W.G. Kritzinger, during a parade at the school and the song was performed for the first time by the School's choir. During December 1980, the Exerce Perfectioni Statue was handed over to the School by the City Council of Oudtshoorn. The statue was unveiled by Gen Magnus Malan.
