President Donald Trump has declared Wednesday "Liberation Day," when he is expected to roll out a tariff plan that will emphasize his "America First" mission.

Some countries are promising swift countermeasures; others are asking for an opportunity to negotiate with the U.S. to avoid trade war.

Mr. Trump announced last week that vehicles and auto parts imported into the U.S. will be subject to a 25% tariff rate. The auto tariffs are expected to go into effect at midnight, just hours after the latest round of tariff announcements by the president Wednesday afternoon.