President Donald Trump has issued a new executive order tightening trade restrictions on Canada, aiming to slow the flow of fentanyl and other illicit drugs across the northern border. The White House claims Canada has failed to devote enough resources to stop drug trafficking, prompting the U.S. to take more aggressive steps.

Under this amendment, certain Canadian goods will lose their duty-free status as the U.S. ramps up its ability to collect tariffs. If Canada pushes back with its own trade penalties, the U.S. says it’s ready to respond in kind—escalating the situation even further.

This latest move builds on earlier declarations of a national emergency and signals the administration’s growing frustration with what it sees as a public health and security threat. Trade tensions between the two nations are expected to rise in the coming months.