Legion of Frontiersmen 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 . First World war . During the First World War , the Legion of Frontiersmen helped raise and fill the ranks of the Princess Patricia ' s Canadian Light Infantry , the 19th Alberta Dragoons , the 49th Battalion - Canadian Expeditionary Force ( today ' s Loyal Edmonton Regiment ) , the 210th Battalion ( Frontiersmen ) , - Canadian Expeditionary Force , the 25th ( Frontiersmen ) Battalion , Royal Fusiliers , and the Newfoundland Regiment . Uniforms . The earliest official description of an authorized uniform for a Canadian unit is noted in " The Frontiersman " , ( December 1912 , page 223 ) describing Vernon and Okanagan Command ’ s uniform as follows : “ Shirt Tunic – To be of substantial material , colour navy blue ; leather buttons ; nickel shoulder chains . Breeches or ( Trousers ) – Any shade of khaki . Footwear – Brown leather ; any combination that affords cover as high as the calves . Headdress – Straight brim Stetson , any shade of brown , with leather band and regimental crest and monogram . Accessories – Brown leather fringed gauntlets ; silk blue and white “ bird ’ s - eye ” neckerchief ; regulation LF holster . ” The Current dress uniform is generally centred around a cavalry blues theme - complete with shoulder chains . This is either worn with a russett - coloured beret , an SD cap or a colonial - pattern ' Lemon Squeezer ' ( Smokey Bear hat ) . Jodhpurs and riding boots are worn by the ' Legion of Horse ' when ' mounted ' . Decorations . Different branches of the legion , in different parts of the Commonwealth award medals within their units and occasionally to external branches , commands or units . These medals are not part of any government honours system and should not be treated or claimed as any kind of official military decoration . These medals are much like those of the Freemasons , valued only by members . The Australian Division awards a decoration called the " Australian Medal of Merit " ( internally - used post nominal letters AMM ) that has caused controversy where it has been implied by an occasional recipient that it is a government - endorsed , official medal .