51st (London) Heavy Anti-Aircraft Regiment, Royal Artillery

51st (London) Heavy Anti-Aircraft Regiment
Cap Badge of the Royal Artillery (pre-1953)
Active	1922–1955
Country	United Kingdom
Branch	Territorial Army
Role	Air Defence
Size	Regiment
Garrison/HQ	Duke of York's Headquarters
Engagements	Norwegian Campaign The Blitz North African Campaign Battle of Crete Siege of Tobruk Tunisian Campaign Italian Campaign
Commanders
Notable commanders	Brig H.M.J. McIntyre

51st (London) Heavy Anti-Aircraft Regiment was a volunteer air defence unit of Britain's Territorial Army from 1922 until 1955. During World War II it served in Norway, The Blitz, North Africa (when detachments defended Crete and Tobruk), and finally in Italy until the end of the war in Europe, by which time a proportion of the regiment's personnel were African soldiers, and the guns were engaging ground targets rather than aircraft.