85 (Tees) Anti-Aircraft Brigade RA (TA) was formed at Middlesbrough in November 1938. It was re-designated as 85 (Tees) Anti-Aircraft Regiment RA (TA) in January 1939. In June 1940 it became 85 (Tees) Heavy Anti-Aircraft Regiment RA (TA). The Regiment was placed in suspended animation in October 1944. 85 (Tees) Heavy Anti-Aircraft Regiment RA (TA) was reconstituted as 485 (Tees) (M) Heavy Anti-Aircraft Regiment RA (TA) in January 1947.
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.
| Jan 39 |  |
7 Anti-Aircraft Division, 43 Anti-Aircraft Brigade | Middlesbrough, Teeside, UK |
| Apr 40 | 1 Anti-Aircraft Brigade | France | |
| May 40 | 1 Anti-Aircraft Brigade | Dilbeek, Belgium | |
| May 40 | 2 Anti-Aircraft Brigade | Dunkirk, France | |
| Jun 40 |  |
5 Anti-Aircraft Division, 5 Anti-Aircraft Brigade | Gloucester, Gloucestershire, UK |
| Dec 40 |  |
6 Anti-Aircraft Division, 28 Anti-Aircraft Brigade | Kent , UK |
| May 42 | |
6 Anti-Aircraft Division, 71 Anti-Aircraft Brigade | Kent , UK |
| Oct 42 |  |
War Office Reserve, 25 Anti-Aircraft Brigade | UK |
| Mar 43 | |
War Office Reserve | UK |
| May 43 |  |
1 Army, 66 Anti-Aircraft Brigade | Bone, Algeria |
| Dec 43 |  |
Allied Forces HQ, 25 Anti-Aircraft Brigade | Manfredonia, Italy |
| Oct 44 | Suspended animation |
Batteries
| Jan 39 | 174 (North Riding), 175 (2nd North Riding), 220 (County of Durham) |
| May 41 | 174, 175, 220, 413 |
| May 42 | 174, 175, 220 |
Equipment
| Sep 39 | 24 x 3.7 inch Guns |
Gun Sites Occupied
(Site – */* = old site/new site)
174 Battery
| Dates | Gun Sites | Comments | Gun Defended Area |
| 12 Jul 40 | O1 Pembrey T Sketty |
4 x Guns 4 x Guns |
Pembrey Swansea |
| Aug 40 |
O1 Pembrey T Sketty |
4 x 3.7 inch Guns 4 x 3.7 inch Guns |
Pembrey Swansea |
| Sep 40 | Y Pembroke Dock Z Pembroke Dock |
220 Battery
| Dates | Gun Sites | Gun Defended Area |
| Nov 40 | N/H4 Nash | Newport |