126 (Middlesex) Light Anti-Aircraft Regiment RA (TA) was converted in February 1942 from 60 Searchlight Regiment. The Regiment went to Normandy in October 1944 with 74 Anti-Aircraft Brigade and served with them to the end of the war. 126 (Middlesex) Light Anti-Aircraft Regiment RA (TA) was placed in suspended animation in February 1946 and re-constituted as 595 (9th Battalion The Middlesex Regiment) 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 60 Searchlight Regiment | ||
| May 42 |  |
2 Anti-Aircraft Division, 41 Anti-Aircraft Brigade | Norwich, Norfolk, UK |
| Sep 42 | |
2 Anti-Aircraft Division, 41 Anti-Aircraft Brigade | Yarmouth, Norfolk, UK |
| Jul 43 | Home Forces, 74 Anti-Aircraft Brigade | Leicestershire, UK | |
| Jan 44 | Home Forces, 74 Anti-Aircraft Brigade | Bournemouth, Dorset, UK | |
| Mar 44 |  |
2 Army | Eastleigh, Hampshire, UK |
| Aug 44 | |
2 Army | Sussex Coast, UK |
| Oct 44 |  |
21 Army Group, 74 Anti-Aircraft Brigade | Gheel, Belgium |
| Nov 44 | |
21 Army Group, 74 Anti-Aircraft Brigade | Nijmegen, Holland |
| May 45 | 1 Canadian Army | Rotterdam, Holland |
Batteries
| Feb 42 | 415, 429, 430, 431 |
| Oct 42 | 415, 429, 430 |
Equipment
| Feb 42 | Bofors 40 mm Guns |