The 1st Anti-Aircraft Division was an Air Defence formation of the British Army before and during the early years of the Second World War. It defended London during the Battle of Britain and The Blitz.
26th (London) Anti-Aircraft Brigade was an Air Defence formation of the British Army during the Second World War. It defended London during the Blitz.
28th Anti-Aircraft Brigade was an air defence formation of the British Territorial Army created in 1925 to command anti-aircraft units in Kent and around the militarily important Medway Towns, which it defended during the Second World War. In 1940 the brigade was responsible for the defences on the south side of the Thames Estuary including the Royal Naval Dockyard at Chatham and the Port of Dover. The brigade was heavily engaged throughout the Battle of Britain, in the summer of 1940, and The Blitz, from autumn 1940 to spring 1941, operating a total of 70 heavy anti-aircraft (HAA) guns controlled from a gun operations room (GOR) at Chatham. During 1942 many of the brigade's experienced units were transferred to active theatres overseas. Increasingly the brigade included women of the Auxiliary Territorial Service (ATS).
The 28th (Essex) Searchlight Regiment was a volunteer air defence unit of Britain's Territorial Army (TA) from 1935 until 1961, at first as part of the Royal Engineers, later in the Royal Artillery. During the Second World War it defended the approaches to London in The Blitz and Operation Diver before becoming a garrison unit in the liberation of Norway.
29th Anti-Aircraft Brigade was an air defence formation of Britain's Territorial Army (TA) before and during the Second World War. It defended East Anglian airfields and ports during the Battle of Britain and The Blitz. It was reformed in the postwar TA.
The 2nd Anti-Aircraft Division was an Air Defence formation of the British Army from 1935 to 1942. It controlled anti-aircraft gun and searchlight units of the Territorial Army (TA) defending the East Midlands and East Anglia during The Blitz.
The IV Home Counties (Howitzer) Brigade, Royal Field Artillery was a new volunteer unit formed in Kent as part of the Territorial Force (TF) in 1908. It saw active service on the Western Front during World War I and was reconstituted as medium artillery in the interwar years. Later it converted to anti-aircraft artillery, in which role it served in The Blitz, North Africa and Italy during World War II and continued under various designations until its disbandment in 1969.
The 40th Anti-Aircraft Brigade was an air defence formation of Anti-Aircraft Command in the British Territorial Army (TA) formed shortly before the outbreak of the Second World War. Its initial role was to defend Royal Air Force (RAF) airfields in East Anglia. Later it commanded part of the searchlight belt protecting The Midlands. In 1944 the brigade was moved south to protect the embarkation ports for Operation Overlord and to defend against V-1 flying bombs in Operation Diver. It was briefly reformed in the postwar TA.
The 6th Anti-Aircraft Division was an air defence formation created within Anti-Aircraft Command of Britain's Territorial Army just before the Second World War. It defended the Thames Estuary and the approaches to London during the Battle of Britain and the Blitz.
The 73rd Searchlight Regiment was a volunteer air defence unit of Britain's Territorial Army (TA) from 1939 until 1955, at first as part of the Royal Engineers, later in the Royal Artillery. It served during the Battle of Britain and The Blitz.
The 37th Anti-Aircraft Brigade was an air defence formation of Britain's Territorial Army (TA) formed just before the outbreak of the Second World War. It was engaged in defending the Thames Estuary during the war, and continued to form part of Anti-Aircraft Command in the postwar era.
II Anti-Aircraft Corps was a high-level formation of Britain's Anti-Aircraft Command from 1940 to 1942. It defended the Midlands and North West of England and Wales during the Blitz and the middle years of the Second World War.
III Anti-Aircraft Corps was a high-level formation of Britain's Anti-Aircraft Command from 1940 to 1942. It defended Scotland, Northern Ireland and North East England during the Blitz and the middle years of the Second World War.
The 8th Anti-Aircraft Division was an air defence formation of the British Army during the early years of the Second World War. It defended South West England during The Blitz and the Luftwaffe 'hit and run' raids, but only had a short career.
1st Anti-Aircraft Group was a formation created by the British Army's Anti-Aircraft Command in 1942 to control anti-aircraft (AA) units defending London against Luftwaffe attacks during World War II. It continued this role into the Cold War until disbandment in 1955.
The 90th Heavy Anti-Aircraft Regiment, Royal Artillery was an air defence regiment of Britain's Territorial Army (TA) formed in the London suburbs of Middlesex during the period of international tension leading up to the outbreak of World War II. It defended London during the Battle of Britain and the Blitz of 1940–41 and later served in the campaign in North West Europe. The unit continued in the postwar Territorial Army until it was disbanded in 1955.
80th Searchlight Regiment, was an air defence unit of Britain's Royal Artillery during World War II. It protected the United Kingdom as part of Anti-Aircraft Command from the Blitz of 1940 until it began to disperse in 1944.
The 132nd Light Anti-Aircraft Regiment, was an air defence unit of the British Army's Royal Artillery during World War II. The regiment was formed in March 1942 from the short-lived 85th Searchlight Regiment, Royal Artillery which had only been raised in the previous year as part of the rapid expansion of Anti-Aircraft Command. It served in Home Defence throughout the war, until disbandment in 1945.
The 90th Searchlight Regiment, Royal Artillery, was a short-lived air defence unit of the British Army during World War II. It served in Anti-Aircraft Command from 1941 to 1943, mainly in Northern Ireland, and never deployed overseas.
117th Heavy Anti-Aircraft Regiment was an air defence unit of Britain's Royal Artillery during World War II. It protected Sheffield during the latter part of The Blitz and also served on Merseyside and in the Orkneys, where it protected the vital naval base of Scapa Flow. Later it defended London during the 'Baby Blitz' and against the V-1 flying bomb offensive. Towards the end of the war the regiment was converted into infantry for occupation duties in Continental Europe. It was disbanded at the end of the war.
United Kingdom 
British Army