It was established on 14 December 1948, with its Royal Corps status being conferred by His Majesty King George VI.

At her coronation in 1953, Queen Elizabeth II became Colonel-in-Chief of the corps.

[2] The School of Infantry (SOI) is located at Singleton, New South Wales, and forms part of the Combined Arms Training Centre.

The "Head of Corps – Infantry" is usually a Brigadier and is the Honorary Colonel of the Royal Australian Regiment.

The role of the Royal Australian Infantry is to seek out and close with the enemy, to kill or capture him, to seize and hold ground, to repel attack, by day or night, regardless of season, weather or terrain.