161 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was formed at Park Gate, Sheffield in June 1942. It became a non-mixed Regiment in August 1945. The Regiment served in the UK for its entire existence. 161 (Mixed) Heavy Anti-Aircraft Regiment RA (TA) was considered a new War Formed unit in January 1947 and re-designated in the April as 98 Heavy Anti-Aircraft Regiment RA.
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.
|Jun 42||Formed||Sheffield, Yorkshire, UK|
|Aug 42||5 Anti-Aircraft Group, 41 Anti-Aircraft Brigade||East Anglia, UK|
|Feb 43||5 Anti-Aircraft Group, 39 Anti-Aircraft Brigade||East Anglia, UK|
|May 43||GHQ Reserve, 103 Anti-Aircraft Brigade||East Anglia, UK|
|Jun 43||63 Anti-Aircraft Brigade, Diver defences||East Anglia, UK|
|Aug 45||Re-organised as non mixed regiment|
|Jun 42||447 (Mixed), 448 (Mixed)|
|Jul 42||447 (M), 448 (M), 558 (M)|
|Nov 42||447 (M), 448 (M), 558 (M), 593 (M)|
|Feb 44||447 (M), 448 (M), 558 (M)|
|Dec 44||447 (M), 448 (M), 517 (M)|