21st Brigade (United Kingdom)
The 21st Brigade was an infantry brigade formation of the British Army.It was assigned to the 7th Division and served on the Western Front and in the Italian Front during the First World War.The infantry battalions which were assigned to the brigade during the war included:
The brigade was reformed in World War II as the 21st Infantry Brigade. The brigade Headquarters were formed in the Sudan on 24 July 1940, commanded by Brigadier J.C.O. Marriott and, as in the First World War, consisting of three Regular Army battalions. However, with the arrival of the 5th Indian Infantry Division, which at the time consisted only of two brigades, the brigade was transferred to the Indian Army establishment and subsequently, on 12 October 1940, redesignated as the 29th Indian Infantry Brigade and the battalions were posted to the other two brigades of 5th Indian Division, the 2nd West Yorkshire Regiment to the 9th Indian Infantry Brigade and 1st Essex Regiment to 10th Indian Infantry Brigade.Order of battle World War II
21st Infantry Brigade was constituted as follows during World War II:
