[1][2][3][4] (It was jokingly observed that a reorganisation that eliminated eight general officers was the best contribution to the war effort at the time!

A former first-class cricketer, Tremlett had distinguished himself earlier in the war when he commanded 54th (Argyll and Sutherland Highlanders) Light Anti-Aircraft Regiment, Royal Artillery defending the mole during the Dunkirk evacuation.

[11] The Luftwaffe carried out few bombing raids on London during 1943, preferring to concentrate on 'hit and run' attacks by Fighter-bombers against coastal targets.

Although much damage was caused in London, the rising efficiency of the HAA guns and radar made the enemy's losses unsustainable.

[12] AA Command had been steadily losing men and units to the build-up of 21st Army Group for the planned Allied invasion of Europe (Operation Overlord).

In April 1944, while the Baby Blitz was still under way, it was ordered to deploy much of its strength to defend the Overlord concentration areas and embarkation ports.

In the event, the first of these did not arrive over England until a week after the D Day landings had begun, and AA units were able to redeploy from their Overlord sites to begin Operation Diver.

The task was made bigger by the decision to move the Diver Belts to the coast itself, giving the guns a free fire zone out to sea.

On 16 July 1 AA Group was ordered to form a 'Diver Box' of gun defences across the Thames Estuary, forward of a line from Chelmsford in Essex to Chatham, Kent.

AA Command's success rate in this phase was impressive: out of a total of 492 V-1 targets, 320 were shot down, and only 13 reached London.

As demobilisation progressed, some of the war-formed regiments were replaced by Regular Army units returned from overseas deployments.

The 1947 plan was never fully implemented, and most of the Regular units assigned to AA Command were disbanded as part of postwar demobilisation.

As the Cold War developed, there was a need for new weapons, leading to the rise of Surface-to-air missiles and 'blind fire' radar control, with the consequent decline of HAA guns and searchlights.