President Donald Trump just set new tariffs for every country around the world, solidifying his extreme break with America’s long-standing trade policy.

Even the most fleshed-out trade pacts are light on details, and in some cases there are different interpretations of what was agreed upon.

On Thursday, Donald Trump announced sweeping new tariffs against U.S. trading partners that will go into effect next week. The announcement came on the same day that an appeals court grappled with the question of whether Trump’s tariffs are even legal.