II Anti-Aircraft Corps (II AA 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.
Origin
AA Command had been created in 1938 to control the Territorial Army's rapidly-expanding anti-aircraft (AA) organisation within Air Defence of Great Britain. On the outbreak of war in September 1939, it commanded seven AA Divisions, each with several AA Brigades, disposed around the United Kingdom.[2][3][4][5] Continued expansion made this organisation unwieldy, so in November 1940 – during the Luftwaffe's nightly Blitz on London and other British cities – five further AA Divisions were organised, and all the divisions grouped under three corps headquarters directly subordinate to AA Command. II AA Corps covered the Midlands and North West of England and North Wales, and by February 1941 comprised four AA divisions and 14 brigades. Its boundaries roughly coincided with No. 9 Group RAF and No. 12 Group RAF of RAF Fighter Command.[2][5][6][7]
The AA Corps and Divisional HQs were disbanded in October 1942 and a replaced by a more flexible system of AA Groups, each aligned with a Group of RAF Fighter Command. The area covered by II AA Corps became the responsibility of two of the new groups: 4th AA Group (North Wales and North West England) with 9 Group RAF, and 5th AA Group (North East England) with 12 Group RAF.[2][5][7][18]
Cole, Howard (1973). Formation Badges of World War 2. Britain, Commonwealth and Empire. London: Arms and Armour Press.
Gen Sir Martin Farndale, History of the Royal Regiment of Artillery: The Years of Defeat: Europe and North Africa, 1939–1941, Woolwich: Royal Artillery Institution, 1988/London: Brasseys, 1996, ISBN1-85753-080-2.
J.B.M. Frederick, Lineage Book of British Land Forces 1660–1978, Vol II, Wakefield, Microform Academic, 1984, ISBN1-85117-009-X.
Brig N.W. Routledge, History of the Royal Regiment of Artillery: Anti-Aircraft Artillery 1914–55, London: Royal Artillery Institution/Brassey's, 1994, ISBN1-85753-099-3