President Trump on Monday said the U.S will impose 25% tariffs on goods from South Korea and Japan by August 1, while also threatening to hit five other nations with import duties of up to 40% by next month.

Trump delayed the "reciprocal tariffs" in April, vowing to strike roughly 90 trade deals in 90 days. So far, the White House says it has reached trade agreements with only the United Kingdom and Vietnam, as well as a preliminary accord with China.

Trump and his aides have repeatedly shifted their stance on tariffs in the weeks since the president’s “Liberation Day” announcement.