98 Anti-Aircraft Regiment RA(TA) was formed at Cheltenham, Gloucestershire in April 1939. It was re-designated as 98 Heavy Anti-Aircraft Regiment RA(TA) in June 1940. The Regiment was placed in suspended animation in April 1946 in NW Europe and reconstituted as 498 (Gloucestershire) Heavy Anti-Aircraft Regiment RA(TA) in January 1947.
| Apr 39 | 46 Anti-Aircraft Brigade, 5 Anti-Aircraft Division | UK |
| Sep 40 | 44 Anti-Aircraft Brigade, 4 Anti-Aircraft Division | Manchester, UK |
| Mar 44 | 2 Army | UK |
| Jun 44 | 2 Army | NW Europe |
Batteries
| Apr 39 | 300, 301 |
| May 40 | 300, 301, 320 |
| Mar 41 | 300, 301, 320, 399 |
| Jul 42 | 300, 301, 320 |
Gun Sites Occupied
(Site – */* = old site/new site)
| Dates | Gun Site | Gun Defended Area |
| 1940 | B3/7 Rockingham Farm | Bristol |
