The tariffs are not happening immediately — at least for Mexico and Canada. But with China's tariff still in place, the country decided to respond on Tuesday.

Last-minute phone calls pull the North American neighbours back from the brink of a trade war, but the US is still targeting Chinese imports.

President Trump granted Mexico and Canada a 30-day reprieve on U.S. tariffs after both nations agreed to intensify efforts to block illicit drugs and migrants.