59 (Warwickshire) Searchlight Regiment RA (TA) formed in November 1938 by the transfer and expansion of 399 Anti-Aircraft Company, 58 (Middlesex) Anti-Aircraft Battalion Royal Engineers (TA) to the RA. The Regiment Served in Anti-Aircraft Command until conversion to Light Anti-Aircraft. 59 (Warwickshire) Searchlight Regiment RA (TA) was converted in April 1943 to 148 Light Anti-Aircraft Regiment. It was re-constituted as 594 (Warwickshire) Light Anti-Aircraft 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 |  |
4 Anti-Aircraft Division, 54 Anti-Aircraft Brigade | Birmingham, UK |
| Nov 40 |  |
Orkney & Shetland Defences | Orkney & Shetland, UK |
| Aug 42 |  |
7 Anti-Aircraft Division, 36 Anti-Aircraft Brigade | East Scotland |
| Apr 43 | Became 148 Light Anti-Aircraft Regiment | Holywood, Devonshire, UK |
Batteries
| Nov 38 | 399, 427, 428 |
| Mar 42 | 399, 427, 428, 516 |
| Feb 43 | 399, 427, 428 |