"Vladimir Putin has been acting increasingly irrationally," said Mr Leblanc, who for years oversaw troops and early warning systems in Canada's northern territories. "When an enemy starts to act irrationally, you need to make sure the defences of your own country are up to par. In the Canadian Arctic, that's a problem - we haven't done enough."Is North America's Arctic vulnerable to Russia?
Mr Leblanc's warnings have been echoed by many of Canada's most senior defence officials. Chief of Defence Staff Wayne Eyre recently told attendees at a Canadian security conference that the far north is "a key area of concern", adding that it's not "inconceivable that our sovereignty may be challenged".
https://www.bbc.com/news/world-us-canada-60837944