Donald Trump's decision to impose tariffs on China, Canada and Mexico sparked a fierce international dispute, with each nation vowing to take counteraction against the United States.

USAID’s website has dropped offline without explanation in the Trump administration's two-week-old funding freeze of U.S. foreign aid and development funding.

With Donald Trump ordering new tariffs on Canada, Mexico and China, the US seems set for a standoff. Canada's Justin Trudeau ...