The 6th Battalion, Royal Scots, was a unit of Britain's part-time Territorial Force. Beginning as a Volunteer unit formed from teetotallers in the city of Edinburgh in 1867, it later became affiliated to the Royal Scots. During World War I it served in the Senussi Campaign and on the Western Front. Postwar it was converted into a medium artillery battery. Volunteer Force The enthusiasm for the Volunteer movement following an invasion scare in 1859 saw the creation of many Rifle Volunteer Corps (RVCs) composed of part-time soldiers eager to supplement the Regular British Army in time of need. The 1st City of Edinburgh RVC comprised 21 different companies raised in that city between August 1859 and November 1860 drawn from miscellaneous interests. No 16 Company was formed on 29 February 1860 by John Hope entirely from members of the British Temperance League who had 'signed the pledge' as Total abstainers. Hope then decided to raise a complete corps of abstainers from Edinburgh and on 27 May 1867 the 3rd City of Edinburgh RVC of two companies was formed with Hope in command. Most of his recruits (and the cap badge) were taken from No 16 Company, and the 3rd RVC remained administratively attached to the 1st City of Edinburgh RVC (the Queen's Edinburgh Volunteer Rifle Brigade) for several years. The unit, known locally as 'John Hope's Water Rats', added new companies in 1868,1872 and 1877, reaching a total of six companies. In 1880 it was renumbered as the 2nd Edinburgh RVC. From 1861 to 1892 the British Temperance League Cadet Corps of four companies with John Hope in command was affiliated to the unit. Localisation Under the 'Localisation of Forces' scheme introduced in 1872 by the Cardwell Reforms, the unit was grouped with the 1st Regiment of Foot (the Royal Scots), the Edinburgh Light Infantry Militia, the QERVB and a number of other RVCs from neighbouring counties into Brigade No 62. When these were combined into a single regiment under the Childers Reforms of 1881, the 2nd Edinburgh RVC became a Volunteer Battalion (VB) of the Royal Scots, being numbered 4th VB in 1888. Two additional companies were added in 1900: G Company at Portobello, Edinburgh, and H Company at the Church of Scotland Teacher Training College. The Stanhope Memorandum of December 1888 introduced a Mobilisation Scheme for Volunteer units, which would assemble in their own brigades at key points