Post-1945
It was disbanded in March 1947, but reformed from 91 Lorried Infantry Brigade in April 1956 but then disbanded in December 1957. From June 1960 the brigade was in Germany with the 1st Division but then placed within 2nd Division until it was disbanded on restructuring of the Army in September 1976. As part of the five-battle group division scheme from 1976 to 1983 it was part of 2nd Armoured Division, converted to armour. Moved to 1st Armoured Division it remained, with a spell under HQ 3rd Armoured Division during Operation Granby, until disbandment under Options for Change.
Following the Strategic Defence Review, the Brigade was reformed in mechanized form from the disbanding 5th Airborne Brigade. It is now based at Bulford, Wiltshire (having formerly been in Aldershot) and is part of the 3rd (UK) Division.
The brigade headquarters, with two battle groups - the 1st Battalion The Royal Anglian Regiment and the 1st Battalion The Grenadier Guards - deployed to Afghanistan in 2007 to form the headquarters and main infantry combat units of Task Force Helmand as a part of the NATO International Security Assistance Force. The 2009 book, Attack State Red, recounts the Royal Anglian Battle Group's contribution to this operation.
Read more about this topic: 12th Mechanized Brigade (United Kingdom)