Formed in July 1943 as RHQ 1 Anti-Aircraft Fort RA at Militia Camp, Rainham, Chatham. Two weeks later it amalgamated with 637 Independent Heavy Anti-Aircraft Battery RA to form 1 Anti-Aircraft Fort Regiment RA. The Regiment was disbanded in November 1945.
|Jul 43||Formed as RHQ 1 Anti-Aircraft Fort RA to command
Maunsell Fort batteries in Thames Estuary
|Chatham, Kent, UK|
|Jul 43||Amalgamated with 637 Battery to form 1 Anti-Aircraft
Fort Regiment RA