Until now, the military has limited itself to a supporting role at the border: surveilling for illegal crossings by ground and air, repairing vehicles and building barriers.

Canadian officials are anxiously waiting to see if U.S. President Donald Trump follows through on his threat to slap Canada with devastating tariffs Saturday.

President Trump’s new tariffs on Canada, Mexico, and China aim to reshape global trade but risk higher inflation, economic ...

New trade penalties against Canada, Mexico and China that President Donald Trump plans to impose Saturday represent an ...