The new trade agreement between the U.S. and the European Union will lift tariffs on imports of goods from EU countries to their highest level in decades and hurt the trading bloc's economic growth, according to some experts.

Canada and other countries around the world are watching to see if U.S. President Donald Trump follows through on his threat to increase tariffs on most nations this week. Here is a look at how Trump's trade war has unfolded with Canada so far.