78 Light Anti-Aircraft Regiment RA (TA) was formed in June 1941 at Thornbury, Bradford with three batteries. The Regiment moved to India in August 1942. It served in India and Burma (Myanmar) until disbanded. 78 Light Anti-Aircraft Regiment RA (TA) was disbanded in September 1944 in India.
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.
| Jun 41 | Formed | Bradford, Yorkshire, UK | |
| Jun 41 | Home Forces | UK | |
| Aug 42 | Deccan Area | India | |
| Sep 42 |  |
Eastern Army, 1 Indian Anti-Aircraft Brigade | India |
| Jan 43 | |
Eastern Army, 9 Anti-Aircraft Brigade | India |
| Feb 43 |  |
14 Army, 8 Heavy Anti-Aircraft Regiment Group | Burma (Myanmar) |
| Mar 43 | |
14 Army, 4 Corps | Burma (Myanmar) |
| Jul 44 | |
14 Army, 33 Indian Corps | India |
| Sep 44 | Disbanded | India |
Batteries
| Jun 41 | 236, 238, 241 |
| Mar 42 | 143, 236, 241, 469 |
| May 42 | 143, 236, 241 |