Its purpose is to "centrally command high-demand, low-volume capabilities."

In 2019, under the Field Army Reorganisation Plan (FARP), the role of Deputy Commander, Field Army was expanded with the moving of several commands and formations (by 2021) coming under direct control of CFA.

Those units included the following:[1] On 25 November 2021, the Future Soldier programme was announced, which is due to be completed by 2030 and will reorganise the British Army from bottom to top.

The role of "Field Army Troops" has been described as follows: "Field Army Troops – will centrally command high-demand, low-volume capabilities."

16 Air Assault Brigade Combat Team formerly came under Field Army Troops until 2023, when it was re-subordinated to the command of 1st (UK) Division, under Future Soldier.