109 (Royal Sussex Regiment) Light Anti-Aircraft Regiment RA(TA) was converted in January 1942 from 7th Battalion The Royal Sussex Regiment. The Regiment was placed in suspended animation in February 1946.
| Jan 42 | Formed from 7th Battalion Royal Sussex Regiment | |
| Jan 42 | Home Forces | UK |
| Mar 44 | 2 Army | UK |
| Jun 44 | 2 Army | NW Europe |
Batteries
| Jan 42 | 357, 358, 359 |
