In a sharp escalation of global trade tensions, Canada has begun imposing a 25% tariff on select vehicle imports from the United States, joining China in retaliating against a new wave of protectionist measures introduced by President Donald Trump.

China said it will raise its tariff on US goods to 84%, retaliating to the hefty new tariffs on its imports that kicked in on Wednesday. The move came after the Trump administration followed through on a threat to add a 50% tariff on Chinese goods,

President Trump added onto an already complex tariff picture. Here is how Wednesday's new levies will affect countries differently: China China is essentially in its own bucket. Trump, since beginning his second term,