128 Light Anti-Aircraft Regiment RA (TA) was converted in March 1942 from 87 Searchlight Regiment. The Regiment served in Anti-Aircraft Command in the Midlands and South West until converted to Infantry in January 1945. 128 Light Anti-Aircraft Regiment RA (TA)was converted to 628 Infantry Regiment RA in January 1945 and disbanded in September 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.
| Mar 42 | Formed from 87 Searchlight Regiment | ||
| Mar 42 |  |
4 Anti-Aircraft Division, 53 Anti-Aircraft Brigade | North West England |
| Apr 42 | Unbrigaded | ||
| May 42 |  |
11 Anti-Aircraft Division, 67 Anti-Aircraft Brigade | West Midlands, UK |
| Jun 42 | |
11 Anti-Aircraft Division, 54 Anti-Aircraft Brigade | West Midlands, UK |
| Jul 42 | |
11 Anti-Aircraft Division, 68 Anti-Aircraft Brigade | West Midlands, UK |
| Nov 42 |  |
3 Anti-Aircraft Group, 60 Anti-Aircraft Brigade | South West England |
| Jan 45 | Became 628 Infantry Regiment RA |
Batteries
| Mar 42 | 421, 422, 423, 424 |
| Feb 44 | 421, 422, 423 |