38 (The King’s Regiment) Searchlight Regiment RA(TA) formed in August 1940 by the transfer of 38 (The King’s Regiment) Anti-Aircraft Battalion Royal Engineers (TA) to the RA. The Regiment was converted to 635 Infantry Regiment RA in January 1945. It went to suspended animation in January 1946 and was re-constituted as 573 (The King’s Regiment) (Mixed) Heavy Anti-Aircraft Regiment RA(TA) in January 1947.
| Aug 40 | Formed from 38 Anti-Aircraft Battalion Royal Engineers | |
| Aug 40 | 50 Anti-Aircraft Brigade | Derby, Derbyshire, UK |
| Jan 45 | Became 635 Infantry Regiment RA |
Batteries
| Aug 40 | 350, 351, 352, 353 |
