U.S. President Donald Trump has ordered sweeping tariffs on goods from Mexico, Canada and China, demanding that they curb the flow of illegal immigrants and fentanyl into the United States, kicking off a trade war that could dent global growth and stoke inflation.

Trump’s move to impose new tariffs has bewildered the United States’ closest allies and trading partners, who have vowed to respond with levies of their own.

Follow the latest news on the tariffs and other Trump administration moves. Leaders for Canada, Mexico, and China, including Justin Trudeau, respond after President Donald Trump imposes tariffs.