122 Light Anti-Aircraft/Anti-Tank Regiment RA (TA) was formed in January 1944 by re-designation of RHQ 122 Light Anti-Aircraft Regiment with 400 & 402 Batteries plus 168 & 321 Anti-Tank Batteries from 100 Anti-Tank Regiment. In September 1944, RHQ 122 Light Anti-Aircraft/Anti-Tank Regiment RA (TA) was re-designated 122 Anti-Tank Regiment. 402 Battery converted to Anti-Tank and 400 Battery was disbanded. The Regiment was reconstituted in January 1947 as 580 (The Royal Warwickshire Regiment) Heavy Anti-Aircraft Regiment RA (TA).
| Jan 44 | Formed from 122 Light Anti-Aircraft & 100 Anti-Tank Regiments | ||
| Jan 44 |  |
36 Indian Division | India |
| Sep 44 | Became 122 Anti-Tank Regiment |
Batteries
| Jan 44 | 168 (Atk), 321 (Atk), 400 (LAA), 402 (LAA) |