The letters listed a range of tariffs. Goods entering the U.S. from Japan, South Korea, Malaysia, Kazakhstan, and Tunisia will be subject to a 25 percent levy. There will be a 30 percent levy on South African and Bosnian goods, while imports from Indonesia will be subject to a 32 percent rate.

After an era pushing the world toward open trade, the U.S. under President Trump has just pivoted toward higher tariffs and bilateral brinkmanship.

As the stutter-step rollout of President Trump’s global tariffs campaign enters its fifth month, you could be forgiven for losing track of which countries are facing which rates. After all, hardly a day seems to go by without the White House ramping up or negotiating down some of the many different import duties Trump has launched since his so-called “Liberation Day” on April 2.