Cap Badge - 210th (Frontiersman, Moose Jaw, Saskatchewan) Battalion, CEF The 210th (Frontiersmen) Battalion, CEF was a unit in the Canadian Expeditionary Force during the First World War. Based in Moose Jaw, Saskatchewan, the unit was raised by the local Legion of Frontiersmen in early 1916 in that city and surrounding district. After sailing to England in April 1917, the battalion was absorbed into the 19th Reserve Battalion on April 22, 1917. The Legion of Frontiersmen is a paramilitary group formed in Britain in 1905 by Roger Pocock, a former constable with the North-West Mounted Police and Boer War veteran. Prompted by fears of an impending invasion of Britain and the Empire, the organisation was founded as a field intelligence corps on a romanticised conception of the "frontier" and imperial idealism. Headquartered in London, branches of the Legion of Frontiersmen were formed throughout the empire to prepare patriots for war and to foster vigilance in peacetime. Despite persistent efforts, the Legion never achieved much official recognition. Casualties in the First World War devastated the Legion of Frontiersmen, and except for a brief resurgence in the interwar period, a series of schisms and sectarianism prevented attempts to reinvigorate the movement. In the late 1930s, the Legion of Frontiersmen in Canada was formally affiliated with the Royal Canadian Mounted Police, but after a schism split within the Canadian Frontiersmen, the RCMP severed formal ties. Various Legion of Frontiersmen groups still exist throughout the Commonwealth, but as a whole, it has been unable to define its niche in the post-imperial world