Add Yahoo as a preferred source to see more of our stories on Google. SEOUL, Feb. 25 (UPI) -- The United States and South Korea will kick off a major joint military exercise next month, both countries announced Wednesday, as they prepare for the transfer of wartime operational control from Washington to Seoul.

President Donald Trump said he is raising U. S. tariffs on South Korean autos, lumber and pharmaceuticals to 25%, accusing South Korea's legislature of failing to approve a trade agreement he said both countries reached last year.