125 Field Regiment RA(TA) was formed in May 1939 with two batteries as a duplicate of 74 Field Regiment. In July 1940 it was converted to 125 Anti-Tank Regiment RA(TA).
| 3 Sep 39 | 23 Infantry Division | Sunderland, County Durham, UK |
| Jun 40 | 18 Infantry Division | Norfolk, UK |
| Jun 40 | Became 125 Anti-Tank Regiment |
Batteries
| 3 Sep 39 | 294 (2nd Durham), 295 (3rd Durham) |
