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 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.
| Nov 38 | 54 Anti-Aircraft Brigade, 4 Anti-Aircraft Division | Birmingham, UK |
| Nov 40 | Orkney & Shetland Defences | Orkney & Shetland, UK |
| Aug 42 | 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 |
