109 (Royal Sussex Regiment) Light Anti-Aircraft Regiment RA (TA) was converted in January 1942 from 7th Battalion The Royal Sussex Regiment. The Regiment served in the UK until going to North West Europe in June 1944. It fought through France, Belgium, Holland and Germany ending at Hamburg. 109 (Royal Sussex Regiment) Light Anti-Aircraft Regiment RA (TA) was placed in suspended animation in February 1946.
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.
| Jan 42 | Formed from 7th Battalion Royal Sussex Regiment | ||
| Feb 42 |  |
1 Corps | UK |
| Feb 43 |  |
GHQ Reserve | UK |
| Jul 43 |  |
21 Army Group | UK |
| Jun 44 |  |
2 Army, 106 Anti-Aircraft Brigade | Normandy, France |
| Aug 44 | |
21 Army Group, 101 Anti-Aircraft Brigade | Cherbourg, France |
| Oct 44 | |
2 Army, 106 Anti-Aircraft Brigade | Mook, Holland |
| Feb 45 | |
2 Army, 106 Anti-Aircraft Brigade | Reichswald, Germany |
| Apr 45 | |
2 Army, 100 Anti-Aircraft Brigade | Weser, Germany |
| May 45 | |
2 Army, 100 Anti-Aircraft Brigade | Hamburg, Germany |
Batteries
| Jan 42 | 357, 358, 359 |