| Dec 40 | Re-designation of 5 Heavy Regiment | |
| Dec 40 | HQ Troops Aden | Aden |
| Mar 44 | Disbanded to reform 1 Anti-Aircraft Regiment Hong Kong Singapore RA | Aden |
Batteries
| Dec 40 | 9 Coast, 15 Heavy Anti-Aircraft, 23 Heavy Anti-Aircraft, 24 Searchlight |
The history of the Regiment in WW2
