65 Anti-Aircraft Brigade was raised in February 1940 at Southampton as part of 5 Anti-Aircraft Division. It moved to 10 Anti-Aircraft Division with its HQ at York in May 1942. In October 1942 the Division including 65 Anti-Aircraft Brigade became part of 5 Anti-Aircraft Group based at Nottingham.
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.
| Feb 40 | Raised in Southampton |  | 5 Anti-Aircraft Division |
| May 42 | Yorkshire |  | 10 Anti-Aircraft Division |
| Oct 42 | |  | 5 Anti-Aircraft Group |
Order of Battle 1940
| 57 (Wessex) Heavy Anti-Aircraft Regiment (213, 214, 215, 219 Batteries) |
| 24 Light Anti-Aircraft Regiment (76, 78, 86, 87, 88 Batteries)(76 & 78 left Jul 40) |
| 43 Light Anti-Aircraft Regiment (147, 148, 198 Batteries) |
| 58 (Argyll & Sutherland Highlanders) Light Anti-Aircraft Regiment (172, 173, 174 Batteries) |
Order of Battle 1941-42
| 23 Light Anti-Aircraft Regiment (73, 74, 130 Batteries) – Left Dec 41 |
| 24 Light Anti-Aircraft Regiment – Left Summer 41 |
| 43 Light Anti-Aircraft Regiment – Left Jun 41 |
| 46 Light Anti-Aircraft Regiment – Joined Summer 41 |
| 60 Light Anti-Aircraft Regiment – Joined Autumn 41 |
| 80 Light Anti-Aircraft Regiment – Joined Aug 41, left Dec 41 |
| 81 Light Anti-Aircraft Regiment – Joined Mar 42 |
| 97 Light Anti-Aircraft Regiment – Joined Nov 41, left Jun 42 |
