With Trump's Venezuela move and Greenland threats, are Canadians vulnerable?

U.S. President Donald Trump's increasingly bellicose stance on taking over Greenland and the capture of Venezuelan President Nicolás Maduro are combining to trigger questions and theories about what the White House may have in mind for Canada.

The Trump administration's moves come on the heels of its vow to "reassert and enforce" American pre-eminence in the Western Hemisphere, spelled out officially in a new national security strategy.

Among those raising the alarm that it's a possibility is Bob Rae, the former ambassador to the United Nations. In interviews with multiple media outlets this week, Rae said Canadians would be wrong to think their country is not “on the menu” for U.S. aggression.

The Trump administration "doesn’t take Canada’s sovereignty seriously,” he told the Globe and Mail on Tuesday.

Adam Gordon, a visiting fellow of the Cascade Institute at Royal Roads University, says there's mounting evidence suggesting a real risk of the Trump administration using military coercion against Canada.

"We can't take off the table anymore the idea that it is at least plausible that there would be some use of force or threat of use of force, and we need to be prepared for that," Gordon told CBC News on Wednesday.