71 Light Anti-Aircraft Regiment RA (TA) was formed in January 1941 at Stamford, with three batteries. The Regiment served in the UK as part of Anti-Aircraft Command until moving to France in June 1944. 71 Light Anti-Aircraft Regiment RA (TA) was disbanded in February 1946 in North West Europe.
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 41 | Formed | Stamford, Lincolnshire, UK | |
| Jan 41 |  |
10 Anti-Aircraft Division, 31 Anti-Aircraft Brigade | Yorkshire, UK |
| Jun 42 | |
10 Anti-Aircraft Division, 65 Anti-Aircraft Brigade | Yorkshire, UK |
| Mar 44 |  |
2 Army | UK |
| Jun 44 | |
2 Army, 106 Anti-Aircraft Brigade | Normandy, France |
Batteries
| Jan 41 | 210, 211, 216 |
| Oct 41 | 192, 210, 211, 262 |
| Feb 42 | 210, 211, 262, 464 |
| Jul 42 | 210, 211, 262 |