Canada will impose 25% tariffs on C$155 billion ($107 billion) worth of U.S. goods from Tuesday if U.S. President Donald Trump's administration follows through with its proposed tariffs on Canadian goods,

Canada and China swiftly announced retaliatory tariffs against the U.S. on Tuesday, shortly after long-threatened levies by the Trump administration on those countries and Mexico took effect.

Canadian Prime Minister Justin Trudeau said Canada would not allow Trump's "unjustified" tariffs to "go unanswered."