President Donald Trump has signed an order to impose stiff tariffs on imports from Mexico, Canada and China, drawing swift retaliation from the U.S.’s North American neighbors in an emerging trade war.

President Trump will enact 25% tariffs on Mexico and Canada starting Saturday, as well as a 10% tariff on China.

Trump had been threatening the tariffs to ensure greater cooperation from the countries on stopping illegal immigration.

President Donald Trump will move forward with aggressive new tariffs on Canada, Mexico and China on Saturday, the White House said, affirming he will stick to his February 1 deadline for the new duties that could have widespread effects on the economy.

President Donald Trump took action Saturday to impose new tariffs on Canada, Mexico and China, the White House said, which could have a sweeping impact on the American economy. The additional tariffs on Canadian and Mexican goods will be 25 percent,

American importers will pay a new 25 percent tax on goods from Canada and Mexico and a 10 percent levy on products from China.