Formed as 61^st (Finsbury Rifles) Anti-Aircraft Brigade RA (TA) by the conversion to artillery of

the 11^th London Regiment (Finsbury Rifles) (TA) with headquarters at Finchley

Re-designated as 61^st (Middlesex) Anti-Aircraft Brigade RA (TA)

Re-designated as 61^st (Middlesex) Anti-Aircraft Regiment RA (TA)

1939-42 UK

1943-44 Middle East

1944-45 Italy

Re-designated as 61^st (Middlesex) Heavy Anti-Aircraft Regiment RA (TA)

Placed in suspended animation

Reconstituted as 461^st Heavy Anti-Aircraft Regiment RA (Middlesex) (TA)

Disbanded

Formed entirely from the employees of the London Public Transport Board, with headquarters originally at Tottenham and subsequently at Willesden

WW2

1939-43 UK

1943-44 North Africa and Italy

Re-designated as 84^th (Middlesex, London Transport) Heavy Anti-Aircraft Regiment RA (TA)

Placed in suspended animation

Reconstituted as 484^th (M) Heavy Anti-Aircraft Regiment RA (Middlesex) (TA)

Regiment adopted by the Borough of Willesden

Disbanded

Formed as a new unit with headquarters at Southgate, N14

Re-designated as 90^th Heavy Anti-Aircraft Regiment RA (TA)

Placed in suspended animation

Reconstituted initially as 490^th (M) Heavy Anti-Aircraft Regiment RA (Middlesex) (TA) and later re-designated as 490^th (M) Heavy Anti-Aircraft Regiment RA (Southgate) (TA)

Placed in suspended animation and subsequently disbanded

1939-44 UK
1944-45 North West Europe

Formed by the transfer to artillery of 36^th (Middlesex) AA/SL Bn RE (TA), which had been originally raised in 1935, with headquarters at Edgware

1939-44 UK
1945 Norway

Reorganised in an infantry role and re-designated as 634^th Regiment RA (Middlesex) (TA)

and subsequently placed in suspended animation

Reconstituted as 571^st Searchlight Regiment RA (Middlesex) (TA) with headquarters remaining at Edgware

Reorganised and re-designated as 571^st (M) Light Anti-Aircraft/Searchlight Regiment RA (Middlesex) (TA)

Amalgamated with: 595^th LAA/SL Regiment RA ( 9^th Bn Middlesex Regiment) (TA) 604^th (M) LAA/SL Regiment RA (Royal Fusiliers) (TA)

To form:

571^st Light Anti-Aircraft Regiment RA ( 9^th Bn The Middlesex Regiment) (TA)

Amalgamated with the 7^th & 8^th Battalions, The Middlesex Regiment and reverted to infantry to form part of the 5^th Battalion, The Middlesex Regiment (TA)

Formed by the transfer to artillery of 58^th (Middlesex) AA Bn RE (TA), with headquarters at Harrow

1940-44 UK
1944-45 North West Europe

Reorganised in an infantry role and re-designated as 58^th Garrison Regiment RA (Middlesex) (TA)

Re-designated as 611^th Regiment RA (Middlesex) (TA) and subsequently placed in suspended animation

Reconstituted as 593^rd (M) Heavy Anti-Aircraft Regiment RA (Middlesex) (TA) and later re-designated as 593^rd (M) Heavy Anti-Aircraft Regiment RA (Harrow) (TA)

Placed in suspended animation and subsequently disbanded

Formed by the transfer to artillery of 9^th Bn The Middlesex Regiment (Duke of Cambridge's Own) ( 60^th Searchlight Regiment) (TA) which had been converted to a searchlight role in 1938. Headquarters were at Willesden

1940-44 UK
1944-45 North West Europe

Reorganised and re-designated as 126^th Light Anti-Aircraft Regiment RA (Middlesex) (TA)

Placed in suspended animation

Reconstituted as:

595^th Light Anti-Aircraft Regiment RA ( 9^th Battalion The Middlesex Regiment) (TA), with

headquarters at Kingsbury, NW9

Re-designated as 595^th Light Anti-Aircraft/Searchlight Regiment RA ( 9^th Bn The Middlesex Regiment) (TA)

Amalgamated with:

571^st (M) LAA/SL Regiment RA (Middlesex) (TA) 604^th (M) LAA/SL Regiment RA (The Royal Fusiliers) (TA)

To form:

571^st LAA Regiment RA ( 9^th Bn The Middlesex Regiment) (TA)

Amalgamated with 7^th and 8^th Bn The Middlesex Regiment to form 5 Middlesex

Formed as a new unit with headquarters initially at Heston, moving later to Twickenham

1939-44 UK

Placed in suspended animation

Reconstituted as 607^th Searchlight Regiment RA (Middlesex) (TA)

Disbanded

Formed as a new unit with headquarters at Cowley

1939-43 UK

1943-44 Sicily and Italy

Reorganised and re-designated as 75^th Light Anti-Aircraft Regiment RA (Middlesex) (TA)

Placed in suspended animation

Reconstituted as 610^th Light Anti-Aircraft Regiment RA (Middlesex) (TA)

Amalgamated with 604^th (M) LAA/SL Regiment RA (The Royal Fusiliers) (TA) as part of that

Regiment

Disbanded

Reconstituted from part of 69^th ( 3^rd City of London) Searchlight Regiment RA (TA) with headquarters at Harrow Road, Wembley

Reorganised and re-designated as 604^th (M) Light Anti-Aircraft/Searchlight Regiment RA

(The Royal Fusiliers) (TA)

Amalgamated with 610^th LAA Regiment RA (Middlesex) (TA) with no change of title

Amalgamated with:

571^st (M) LAA/SL Regiment RA (Middlesex) (TA) 595^th LAA/SL Regiment RA ( 9^th Bn The Middlesex Regiment) (TA) To form:

571^st LAA Regiment RA ( 9^th Bn The Middlesex Regiment) (TA)

Amalgamated with 7^th and 8^th Bn The Middlesex Regiment to form 5 Middlesex

Formed from part of the 8^th Battalion The Middlesex Regiment with headquarters at Staines initially, moving later to Twickenham

Reorganised and converted to Royal Engineers as 873^rd (Middlesex) Movement Light Squadron RE (TA)