Where he's set to meet with South Korean President Lee Jae Myung in Gyeongju, a historic city playing host to this year's Asia-Pacific Economic Cooperation summit.
After a charm offensive during Trump's visit to Japan that culminated in $490 billion in investment commitments, a trade deal between the U.S. and South Korea appears more elusive as Trump seeks $350 billion in investment in the U.S.
Trump's visit comes as North Korea said Wednesday it fired sea-to-surface cruise missiles into its western waters, in another display of its growing military capabilities.