London District (LONDIST) is the name given by the British Army to the area of operations encompassing the Greater London area. Established in 1870 as Home District, it was re-formed in 1905 as London District to be an independent district within the larger command structure of the army, and has remained so ever since. London District included the 56th (London) Brigade from January 1987 to 1993. In September 1939, the district included the 1st and 2nd London Divisions, the 22nd Armoured Brigade, the Life Guards and Royal Horse Guards and five Guards infantry battalions.