President Donald Trump on Sunday amended two executive orders to exempt imports valued at less than $800 from Canada and Mexico.

Canada must quickly ramp up its defense spending to reach the NATO target while also weaning itself off US-made equipment, argued contenders to replace Justin Trudeau as prime minister.

France plans to a host a second meeting to discuss Ukraine and European security on Wednesday, but has this time invited European countries not present earlier this week and NATO ally Canada, diplomatic sources said on Tuesday.

Defense and security experts urge calm, say Trump's overtures to Putin may not mean the worst for the future of NATO or Canada's close, 85-year-old military alliance with the United States.

Washington had already picked quarrels with neighbors and allies such as Canada, Mexico, Panama and Greenland, on the grounds that the US was asserting its