53 (King’s Own Yorkshire Light Infantry) Light Anti-Aircraft Regiment RA (TA) was converted to RA from 5 Battalion KOYLI (53 LAA Regiment) (TA), in August 1940. The Regiment was placed in suspended animation in September 1946. 53 (King’s Own Yorkshire Light Infantry) Light Anti-Aircraft Regiment RA (TA) was re-constituted as 553 (King’s Own Yorkshire Light Infantry) Light 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.
| Nov 38 | 5th King’s Own Yorkshire Light Infantry (53 Light Anti-Aircraft Regiment) |
Doncaster, Yorkshire, UK | |
| May 40 |  |
2 Corps | France |
| Aug 40 | Became RA – Home Forces | UK | |
| Sep 42 |  |
10 Armoured Division | N Africa |
| Dec 42 |  |
8 Army | N Africa |
| May 43 | Middle East Forces | N Africa | |
| Jun 43 | |
8 Army | N Africa |
| Sep 43 | |
8 Army | Italy |
| Oct 44 | 7 Motorised Brigade | Italy | |
| Oct 44 | |
8 Army | Italy |
Batteries
| Sep 39 | 157, 158, 159 |
Equipment
| Nov 39 | 22 x Bofors 40 mm, 28 x LMG’s |