4th Anti-Aircraft Division (United Kingdom)
| 4th Anti-Aircraft Division | |
|---|---|
Formation sign of the 4th Anti-Aircraft division. | |
| Active | 1 September 1938–30 September 1942 |
| Country | United Kingdom |
| Branch | Territorial Army |
| Type | Anti-Aircraft Division |
| Role | Air Defence |
| Size | 2–5 Brigades |
| Part of | Western Command (1938–39) Anti-Aircraft Command (1939–40) 2 AA Corps (1940–42) |
| Garrison/HQ | Chester Liverpool |
| Engagements | The Blitz |
The 4th Anti-Aircraft Division (4th AA Division) was an air defence formation of Britain's Territorial Army, created in the period of tension before the outbreak of the Second World War. It defended North West England during the Blitz.