54 (Durham Light Infantry) Searchlight Regiment RA (TA) formed in August 1940 by the transfer of 1/5th Battalion The Durham Light Infantry (54 Searchlight Regiment) (TA) to the RA. The Regiment served in Anti-Aircraft Command until moving to 21 Army Group. It went to Belgium in November 1944. It was placed in suspended animation in February 1946. It was re-constituted as 589 (The Durham Light Infantry) (Mixed) Light Anti-Aircraft/Searchlight Regiment RA (TA) in January 1947.
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.
| Nov 38 | 1/5th Battalion Durham Light Infantry (54 Searchlight Regiment) |
Stockton on Tees, Co Durham, UK | |
| Aug 40 |  |
Became RA – 7 Anti-Aircraft Division, 43 Anti-Aircraft Brigade |
Teeside, UK |
| Aug 40 | |
7 Anti-Aircraft Division, 31 Anti-Aircraft Brigade | West Yorkshire, UK |
| Nov 40 |  |
10 Anti-Aircraft Division. 31 Anti-Aircraft Brigade | West Yorkshire, UK |
| Sep 42 |  |
5 Anti-Aircraft Group, 31 Anti-Aircraft Brigade | Yorkshire, UK |
| Jun 44 |  |
21 Army Group, 31 Anti-Aircraft Brigade | Shaftesbury, Dorset, UK |
| Nov 44 | |
21 Army Group, 101 Anti-Aircraft Brigade | Brussels, Belgium |
| Dec 44 | |
21 Army Group, 5 Royal Marine Anti-Aircraft Brigade | Antwerp, Belgium |
Batteries
| Aug 40 | 411, 412, 413 |