U.S. President Donald Trump’s tariff onslaught this week left a lot of losers – from small, poor countries like Laos and Algeria to wealthy U.S. trading partners like Canada and Switzerland.

Canada has been hit with 35 per cent tariffs after U.S. President Donald Trump followed through on his threat to increase the duties if Ottawa didn't make a trade deal. The White House has said the tariffs would not affect goods compliant with the Canada-U.