As part of Defence Reforms, the Army has adopted a revised top level command structure which took effect on 01 Nov 2011.

The Chief of the General Staff (CGS) now commands a single Army Staff which works out of a new Army HQ in Andover. CGS exercises command of the Army through three 3 star subordinate commanders: Commander Land Forces (CLF), Commander Force Development and Training (FDT) and the Adjutant General (AG).

Commander Land Forces is the primus inter pares at 3 star. He acts as the Chief of the General Staff's deputy and he is the commander responsible for delivering the Army's principal outputs. The Field Army, the Reserves, the Firm Base and the Joint Helicopter Command are integrated through the establishment of a Land Force Command.

The Assistant Chief of the General Staff (ACGS) provides control and coordination across the 3 star subordinate commands from the Ministry of Defence (MOD) with the Chief of Staff Land Forces (COS LF) as his representative in the Army Headquarters in Andover.

This new, modernised structure was devised to enhance the Army's interaction with Defence, the Royal Navy, the Royal Air Force and other UK Government agencies. It will also deliver greater efficiency while aligning the Army's peacetime practices with its operational modus operandi in order to allow the Army to continue to exploit success.