The history of Warminster's military garrison can be traced back to Roman Britain, where a small camp was located on the side of the current Battlesbury Barracks (part of the garrison).

However, following Options for Change announced following the Dissolution of the Soviet Union and subsequent end of the Cold War, Headquarters, Combined Arms Training Centre (CATC) located in Warminster was dual-headed as Headquarters, Warminster Garrison and Warminster Training Centre on 1 April 1993.

All three of these elements merged into the Warminster Training Centre (WTC).

[1] On 4 May 1995, as part of the second phase of Options for Change, the Infantry Support Weapons Wing at AAC Netheravon closed and its components moved to WTC as part of the Infantry Training Centre (ITC).

[1] To align its name with its evolving role, CATC was renamed Land Warfare Training Centre in June 2000, which was further refined in 2002 to become Land Warfare Centre (LWC) with HQ Training Support Command (Land) becoming HQ LWC.