Labour corps

Labour corps, alternatively spelt labor corps in American English, usually refers to an organisation that provides labour for military-related purposes. It may be a civilian auxiliary or an internal branch of a particular military service.
File:The British Army on the Home Front, 1914-1918 Q30442.jpg|thumb|right|A private of the Reserve Employment Company in marching order during the First World War
Members of labour corps often perform unskilled manual labour in fields such as construction, military engineering, or logistics.