As President Donald Trump promised on the campaign trail and during his first month in the White House, the United States slapped Canada, Mexico and China with hefty tariffs on Tuesday, and all three trading partners fired back — reducing products they ship to the U.S. while slapping taxes on American-made imports, or both.

Starting just past midnight Tuesday, imports from Canada and Mexico are now taxed at 25%, with Canadian energy products getting tariffed at 10%.