By Jeff Mason, Bart H. Meijer and David Brunnstrom WASHINGTON/BRUSSELS (Reuters) -U.S. President Donald Trump on Monday began telling trade partners - from powerhouse suppliers like Japan and South Korea to minor players - that sharply higher U.

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.