124 (Highland) Light Anti-Aircraft Regiment RA (TA) was converted in February 1942 from 51 Searchlight Regiment. The Regiment served in Anti-Aircraft Command until August 1943. It then transferred to 2 Army to prepare for D Day. It moved to Normandy in August 1944 around Caen. With 70 Anti-Aircraft Brigade it moved to Ostend and then the south bank of the Scheldt estuary. It stayed there until the end of the war. 124 (Highland) Light Anti-Aircraft Regiment RA (TA) was placed in suspended animation in June 1946 and re-constituted as 586 (Highland) 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.
| Feb 42 | Formed from 51 Searchlight Regiment | ||
| Feb 42 | Home Forces | UK | |
| May 42 |  |
7 Anti-Aircraft Division, 30 Anti-Aircraft Brigade | Tyneside, UK |
| Sep 42 |  |
5 Anti-Aircraft Division, 47 Anti-Aircraft Brigade | Southampton, Hampshire, UK |
| Mar 43 |  |
2 Anti-Aircraft Group, 5 Anti-Aircraft Brigade | Gloucester, Gloucestershire, UK |
| Aug 43 |  |
2 Army | UK |
| Aug 44 | |
2 Army, 75 Anti-Aircraft Brigade | Caen, France |
| Sep 44 | |
2 Army, 75 Anti-Aircraft Brigade | Ostend, Belgium |
| Nov 44 | |
2 Army, 75 Anti-Aircraft Brigade | Scheldt, Belgium |
Batteries
| Feb 42 | 404, 411, 412, 413 |
| Oct 42 | 404, 411, 412 |