73 Light Anti-Aircraft Regiment RA (TA) was formed in February 1941 at Stanwell, with three batteries. The Regiment served with Anti-Aircraft Command until Dec 42 when it began training for an assault role on D Day. It fought through France and Belgium. 73 Light Anti-Aircraft Regiment RA (TA) was disbanded in May 1945.
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.
| Feb 41 | Formed | Stanwell, Surrey, UK | |
| Feb 41 |  |
1 Anti-Aircraft Division, 49 Anti-Aircraft Brigade | Stanwell, Surrey, UK |
| Nov 42 |  |
6 Anti-Aircraft Division, 71 Anti-Aircraft Brigade | Kent, UK |
| Dec 42 | Home Forces | Ramsgate, Kent, UK | |
| Feb 43 |  |
2 Army, 76 Anti-Aircraft Brigade | Blandford Camp, Dorset, UK |
| Apr 43 | |
2 Army, 80 Anti-Aircraft Brigade | Blandford Camp, Dorset, UK |
| May 43 | |
2 Army | Ardrossan, Ayrshire, UK |
| Mar 44 | |
2 Army | Slinfold, Sussex, UK |
| 6 Jun 44 | |
2 Army attached 1 Corps | Normandy, France |
| Sep 44 | |
2 Army, 103 Anti-Aircraft Brigade | Le Havre, France |
| Oct 44 | |
2 Army, 80 Anti-Aircraft Brigade | Antwerp, Belgium |
| Nov 44 | |
2 Army, 101 Anti-Aircraft Brigade | Brussels, Belgium |
| Jan 45 | |
2 Army, 75 Anti-Aircraft Brigade | Knokke, Belgium |
| May 45 | Disbanded |
Batteries
| Feb 41 | 218, 220, 221 |
| Nov 41 | 218, 220, 296 |
| Feb 42 | 218, 220, 296, 466 |
| Jul 42 | 218, 220, 296 |
Equipment
| Feb 41 | 20 x 40 mm Bofors Guns, 12 x Lewis MG’s |
| Dec 42 | 54 x 40 mm Bofors Guns |
| Mar 44 | 6 x Crusader AA Mk I (40 mm), 24 x Morris C8 Bofors SP |
| Aug 44 | 2 batteries Bofors 40 mm towed, 1 battery self propelled |