27 Light Anti-Aircraft Regiment RA (TA) was formed at Newark, in August 1939. The Regiment went to North Africa in October 1941 where it served in 12 Anti-Aircraft brigade under 8th Army. It returned to the UK in January 1944 and went to Normandy in July 1944. It was placed in suspended animation in February 1946. 27 Light Anti-Aircraft Regiment RA (TA) was re-constituted as 527 Light Anti-Aircraft/Searchlight 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.
| Sep 39 |  |
Northern Command | UK |
| Oct 39 |  |
32 Anti-Aircraft Brigade | East Midlands, UK |
| Oct 41 |  |
8 Army, 12 Anti-Aircraft Brigade | Mersa Matruh, Egypt |
| Jun 43 |  |
Middle East Forces | N Africa |
| Jan 44 |  |
2 Army | Ipswich, Suffolk, UK |
| Jul 44 | |
2 Army | Normandy, France |
| Sep 44 |  |
30 Corps | Tournai, Belgium |
| Sep 44 | |
30 Corps | Nijmegen, Holland |
| Mar 45 | |
30 Corps | Wesel, Germany |
Batteries
| Sep 39 | 107, 149 |
| Feb 40 | 107, 113, 149 |
| Jan 44 | 6, 107, 113, 149 |