Here's what South Korea's three leading presidential candidates say about tariffs and the U.S.-South Korea relationship under President Trump.

By Nellie Peyton JOHANNESBURG (Reuters) -South African President Cyril Ramaphosa heads to the White House on Wednesday on a perilous mission to persuade U.S. President Donald Trump to make deals with his country rather than scold and punish it as he has done since the start of his second term.

South Korea could pay its dues by investing more in its forces, an analyst said, which would allow U.S. troops stationed in the country to focus more on China.