140th (4th London) Brigade

4th London Brigade 140th (4th London) Brigade 140th (4th London) Infantry Brigade 140th (London) Infantry Brigade
Formation sign of the 47th (1/2nd London) Division, World War I.
Active	1908–19 1920–36 1939–44 1944–45
Country	United Kingdom
Branch	British Army
Type	Infantry
Size	Brigade
Part of	47th (1/2nd London) Division
Nickname(s)	"The Grey Brigade"
Engagements	World War I
Commanders
Notable commanders	Viscount Hampden Arnold Cazenove

The 140th (4th London) Brigade was an infantry brigade formation of the British Army's Territorial Army (TA) that had its origins in a South London Brigade (known as the 'Grey Brigade') of the former Volunteer Force. It served on the Western Front in World War I and was recreated in World War II where it served only in the United Kingdom as a training formation.

An invasion scare in 1859 led to the creation of the Volunteer Force and huge enthusiasm for joining local Rifle Volunteer Corps (RVCs). There were a large number of these units in and around London, and the opportunity was taken to group them together for Easter training under the temporary command of officers of the Brigade of Guards stationed in the capital. Initially they were brigaded by the colour of their uniforms – scarlet, Rifle green or grey, the latter being a popular colour for RVCs in the 1860s. The Stanhope Memorandum of December 1888 proposed a formal Mobilisation Scheme for Volunteer units throughout the country, which would assemble by brigades at key points in case of war. In peacetime these brigades provided a structure for collective training. Under this scheme the units from Westminster, the West End of London and the adjacent suburbs (all in the County of Middlesex) were formed into the South London Brigade. These units had mainly been in the 'Grey Brigade', and the name stuck to the new formation. The staff for the brigade were provided by the Regimental Headquarters of the Scots Guards at Buckingham Gate in London, and its designated place of assembly was at the Guards' Depot at Caterham, where it could take its place in the London Defence Positions. Its composition was as follows: