Mexico, Canada and the European Union on Tuesday condemned U.S. President Donald Trump's decision to impose tariffs on all steel and aluminum imports next month, a move that has fanned fears of a trade war as business and political leaders braced for yet more trade duty announcements from the new administration.

Canadian Prime Minister Justin Trudeau called President Trump’s tariffs on steel and aluminum imports “entirely unjustified” and said the country would respond “if it comes to that.” “Tariffs on

U.S. President Donald Trump's 25 per cent tariffs on all steel and aluminum imports, announced Monday, have been criticized for the far-reaching economic harms they could bring. Two Dal experts explain.