The No. 2 Construction Battalion, Canadian Expeditionary Force (CEF), was raised in Nova Scotia and was one of two predominantly black battalions in Canadian military history and the only Canadian battalion composed of black soldiers to serve in World War I. Commanded by Lieutenant Colonel , formerly of the 193rd Battalion, CEF, all but one of the unit's 19 officers were white, the exception being Captain William A. White, the unit's chaplain.