Canada's secret plan to invade the US: How gung-ho 1920s colonel planned to take over key cities such as Detroit, Seattle and Portland in five-pronged attack

War Plan Red, a new book from author Kevin Lippert, details conflict between the US and its northern neighbor including a Canadian colonel's plan to take over key American cities in the 1920s.

http://www.dailymail.co.uk/news/article-3095635/Could-Americans-pledging-allegiance-MAPLE-LEAF-Canada-s-secret-plan-invade-US.html