Formed in 1900 as 33 Brigade-Division RFA, it became 33 Brigade Royal Field Artillery in 1903. It was re-designated 22 Brigade Royal Field Artillery in November 1922. Another change came in June 1924 when it became 22 Field Brigade RA. 22 Field Regiment RA was re-designated from 22 Field Brigade in May 1938 on a two battery basis. It re-organised as three batteries in November 1940. Post war 22 Field Regiment RA became 31 Training Regiment RA in April 1947.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| 3 Sep 39 |  |
4 Infantry Division | Shorncliffe, Kent, UK |
| Sep 39 | |
4 Infantry Division | France |
| Jun 40 | |
4 Infantry Division | UK |
| 24 Mar 43 |  |
4 Infantry Division | Landed Algeria |
| Jan 44 | |
4 Infantry Division | Suez, Egypt |
| Feb 44 | |
4 Infantry Division | Garigliano River, Italy |
| May 44 | |
4 Infantry Division | Cassino, Italy |
| Jun 44 | |
4 Infantry Division | Tivoli, Italy |
| Jun 44 | |
4 Infantry Division | Trasimene Line, Italy |
| Jul 44 | |
4 Infantry Division | Chianti Mountains, Italy |
| Sep 44 | |
4 Infantry Division | Gothic Line, Italy |
| Dec 44 | |
4 Infantry Division | Greece Provided an infantry company for RA Battalion |
Batteries
| Nov 22 | 32, 33, 36, 55 |
| May 38 | 32/33, 36/55 |
| Nov 40 | 32, 33, 36/55 |
Equipment
| Sep 39 | 24 x 18/25 pdr Guns |
| 1940 – Dec 44 | 25 pdr |