Did you guys actually read the link in detail? There's so many gems, like
The German foreign office was sufficiently interested in this nonsense to pursue the matter further. Of particular interest to them was the question of whether the traditional garb of the cowboy could be construed as a uniform. Their legal department researched the problem and decided that it could not possibly be considered a uniform under the definitions of international law. It was then suggested that badges of rank and regimental insignia be affixed to these outfits on crossing the Canadian border, thus in a flash converting work-clothes into military uniforms. Much legal expertise was devoted to this tricky point, but in the end cooler heads prevailed. What the Germans never seriously questioned was the possibility of finding 650,000 volunteers who were prepared to attack Canada, which showed their complete misunderstanding of the realities of North American life.
Martin Kitchen: "The German Invasion of Canada in the First World War", The International History Review, Vol. 7, No. 2 (May, 1985), pp. 245-260, (For the complete sad story of ambition: jstor