Canada's ambassador to the United States said Sunday that Prime Minister Justin Trudeau was successful in getting President-elect Donald Trump and key Cabinet nominees to understand that lumping Canada in with Mexico over the flow of drugs and migrants into the U.

Trump has promised to slap tariffs on Canadian imports unless Ottawa prevents migrants and drugs from crossing the frontier. Canada sends 75% of all goods and services exports to the United States.

It's important, I think, to show Canadians and the Americans that we're stepping up in a visible and muscular way’ says one Canadian official.