Canada's Arctic is a massive, treacherous, and largely inhospitable place, stretched out over nearly 4 million square kilometres of territory - but with a small population roughly equal to Blackburn in England or Syracuse, New York."You can take a map of continental Europe, put it on the Canadian Arctic, and there's room to spare," Pierre Leblanc, the former commander of the Canadian Forces Northern Area told the BBC. "And that environment is extremely dangerous."Standing at the defence of that massive landmass is an aging string of early warning radars, eight staffed military bases and about 100 full-time Coast Guard personnel...