The Division was created on 1 November 1940 by taking two Territorial Army brigade areas, the 34 (South Midland) and the 54 Brigades, from 4 Anti-Aircraft Division in North West England and adding a Regular Army headquarters from 1 Anti-Aircraft Brigade, recently returned from the Dunkirk evacuation
Re-organisation of Anti-Aircraft Command in October 1942 saw the divisions disbanded and replaced by a smaller number of Anti-Aircraft Groups. 11 Anti-Aircraft Division merged with 4 Anti-Aircraft Division into 4 Anti-Aircraft Group based at Preston in Lancashire
HQ Birmingham
Order of Battle 1940–41
| 1 Anti-Aircraft Brigade – HQ Crewe, Cheshire: responsible for Staffordshire, airfields and Vulnerable Points; left by May 41 |
| 1 Heavy Anti-Aircraft Regiment |
| 106 Heavy Anti-Aircraft Regiment |
| 45 Light Anti-Aircraft Regiment |
| 63 Light Anti-Aircraft Regiment – new regiment raised in October 1940 : to 68 Anti-Aircraft Brigade May 41 |
| 61 (South Lancashire) Searchlight Regiment |
| 78 Searchlight Regiment |
| 83 Searchlight Regiment – new regiment raised in Jan 41 at Crewe, Cheshire |
| 34 (South Midland) Anti-Aircraft Brigade – HQ Coventry: responsible for Birmingham and Coventry Gun Defended Areas |
| 6 Heavy Anti-Aircraft Regiment – arrived from London 24 Nov 40 |
| 60 (City of London) Heavy Anti-Aircraft Regiment |
| 95 (Birmingham) Heavy Anti-Aircraft Regiment |
| 110 Heavy Anti-Aircraft Regiment – new regiment raised in Oct 40 |
| 112 Heavy Anti-Aircraft Regiment – new regiment raised in Oct 40 |
| 22 Light Anti-Aircraft Regiment |
| 54 Anti-Aircraft Brigade – HQ Sutton Coldfield, West Midlands: responsible for Searchlight provision to West Midlands Gun Defended Areas |
| 45 (Royal Warwickshire Regiment) Searchlight Regiment |
| 80 Searchlight Regiment – new regiment raised in Oct 40 |
| 10 Anti-Aircraft Z Regiment – divisional Z Battery rocket unit formed Jan 41 |
Order of Battle 1941–42
| 34 Anti-Aircraft Brigade |
| 6 Heavy Anti-Aircraft Regiment – left in Sep 41 for overseas service; captured in Java, Mar 42 |
| 55 (Kent) Heavy Anti-Aircraft Regiment – from 6 Anti-Aircraft Division by Dec 41; to War Office Control Dec 41, left Feb 42 for Persia and Iraq Command (PAIFORCE) |
| 57 (Wessex) Heavy Anti-Aircraft Regiment – from 1 Anti-Aircraft Division Mar 42; to 9 Anti-Aircraft Division May 42 |
| 60 Heavy Anti-Aircraft Regiment – to the 68 Anti-Aircraft Brigade Summer 41 |
| 65 (Manchester Regiment) Heavy Anti-Aircraft Regiment – from Orkney and Shetland Defences (OSDEF) Jun 41; to 3 Anti-Aircraft Division Autumn 41 |
| 71 (Forth) Heavy Anti-Aircraft Regiment – from 3 Anti-Aircraft Division by Dec 41; to 6 Anti-Aircraft Division May 42 |
| 95 Heavy Anti-Aircraft Regiment – returned from 67 Anti-Aircraft Brigade Dec 41; left Jan 42, arrived in India Apr 42 |
| 107 Heavy Anti-Aircraft Regiment – from 4 Anti-Aircraft Division by May 42; to 5 Anti-Aircraft Division Jun 42 |
| 110 Heavy Anti-Aircraft Regiment – to Orkney & Shetland Defences (OSDEF) May 41 |
| 122 Heavy Anti-Aircraft Regiment – new regiment formed Feb 41; to 67 Anti-Aircraft Brigade by Dec 41 |
| 134 (Mixed) Heavy Anti-Aircraft Regiment – new regiment formed Sep 41 |
| 142 (Mixed) Heavy Anti-Aircraft Regiment – from 67 Anti-Aircraft Brigade Jun 42 |
| 22 Light Anti-Aircraft Regiment – returned from 67 Anti-Aircraft Brigade by Dec 41; to 54 Anti-Aircraft Brigade Jun 42 |
| 42 Light Anti-Aircraft Regiment – left Summer 41; to Middle East Forces by Dec 41 |
| 10 Anti-Aircraft Z Regiment – to 67 Anti-Aircraft Brigade Summer 41; returned by Dec 41 |
| 54 Anti-Aircraft Brigade |
| 22 Light Anti-Aircraft Regiment – from 34 Anti-Aircraft Brigade Jun 42; to War Office Control Sep 42; later to Operation Torch |
| 111 Light Anti-Aircraft Regiment – from 2 Anti-Aircraft Division Jul 42 |
| 128 Light Anti-Aircraft Regiment – from 67 Anti-Aircraft Brigade Jun 42; to 68 Anti-Aircraft Brigade Jul 42 |
| 30 (Surrey) Searchlight Regiment – from 10 Anti-Aircraft Division by May 42; to War Office Control Sep 42; later to Operation Torch |
| 45 Searchlight Regiment – converted into 122 Light Anti-Aircraft Regiment, Feb 42, joined 68 Anti-Aircraft Brigade May 42 |
| 59 Searchlight Regiment – to Orkney & Shetland Defences (OSDEF) May 41 |
| 80 Searchlight Regiment |
| 83 Searchlight Regiment – from 68 Anti-Aircraft Brigade Summer 41 |
| 67 Anti-Aircraft Brigade |
| 95 Heavy Anti-Aircraft Regiment – from 34 Anti-Aircraft Brigade by May 41, returned Dec 41 |
| 122 Heavy Anti-Aircraft Regiment – from 34 Anti-Aircraft Brigade by Dec 41; to 68 Anti-Aircraft Brigade Dec 41 |
| 138 Heavy Anti-Aircraft Regiment – from 9 Anti-Aircraft Division Aug 42; to 3 Anti-Aircraft Division Sep 42 |
| 142 (Mixed) Heavy Anti-Aircraft Regiment – new unit formed Dec 41; to 34 Anti-Aircraft Brigade Jun 42 |
| 22 Light Anti-Aircraft Regiment – from 34 Anti-Aircraft Brigade by May 41; returned by Dec 41 |
| 79 Light Anti-Aircraft Regiment – new unit formed Jul 41; to Persia & Iraq Command (PAIFORCE) by May 42 |
| 10 Anti-Aircraft Z Regiment – from 34 Anti-Aircraft Brigade Summer 41; returned by Dec 41 |
By May 1942, the 67 Anti-Aircraft Brigade consisted only of 142 (Mixed) Heavy Anti-Aircraft Regiment; thereafter it was joined by:
| 119 Heavy Anti-Aircraft Regiment – from 8 Anti-Aircraft Division Jun 42; to Orkney & Shetland Defences (OS DEF) Sep 42 |
| 143 (Mixed) Heavy Anti-Aircraft Regiment – new regiment formed Jan 42, joined Jul 42 |
| 87 Light Anti-Aircraft Regiment – from 8 Anti-Aircraft Division Jun 42; to unbrigaded Jul 42 |
| 128 Light Anti-Aircraft Regiment – converted from 87 Searchlight Regiment, joined May 42; to 54 Anti-Aircraft Brigade Jun 42 |
| 37 (Tyne Electrical Engineers) Searchlight Regiment – from 9 Anti-Aircraft Division Jul 42; returned Sep 42 |
In June 42, the 67 Anti-Aircraft Brigade transferred to the 9 Anti-Aircraft Division, and by October 42 it once again consisted of a single regiment (143 (Mixed) Heavy Anti-Aircraft Regiment ).
| 68 Anti-Aircraft Brigade |
| 60 Heavy Anti-Aircraft Regiment – from 34 Anti-Aircraft Brigade Summer 41; to 12 Anti-Aircraft Division by Sep 41 |
| 106 Heavy Anti-Aircraft Regiment – from 1 Anti-Aircraft Brigade ; to 2 Anti-Aircraft Division Summer 41 |
| 115 Heavy Anti-Aircraft Regiment – from Orkney & Shetland Defences (OS DEF) Sep 42 |
| 122 Heavy Anti-Aircraft Regiment – from 67 Anti-Aircraft Brigade Dec 41; to unbrigaded Jul 42 |
| 45 Light Anti-Aircraft Regiment – from 1 Anti-Aircraft Brigade ; to 2 Anti-Aircraft Division Dec 41 |
| 63 Light Anti-Aircraft Regiment – from 1 Anti-Aircraft Brigade ; to 70 Anti-Aircraft Brigade Jul 42; later to Operation Torch |
| 98 Light Anti-Aircraft Regiment – new unit formed by a cadre from 45 Light Anti-Aircraft Regiment Dec 41; to 4 Anti-Aircraft Division by May 42 |
| 122 Light Anti-Aircraft Regiment – from 87 Searchlight Regiment, 54 Anti-Aircraft Brigade , May 42; to 6 Anti-Aircraft Division by Sep 42 |
| 128 Light Anti-Aircraft Regiment – from 54 Anti-Aircraft Brigade Jul 42 |
| 38 (The King’s Regiment) Searchlight Regiment – from Orkney & Shetland Defences (OS DEF) Jun 41 |
| 61 Searchlight Regiment – from 1 Anti-Aircraft Brigade |
| 83 Searchlight Regiment – from 1 Anti-Aircraft Brigade ; to 54 Anti-Aircraft Brigade Summer 41 |
| 78 Searchlight Regiment – from 1 Anti-Aircraft Brigade |