Barely two months into office, South Korean President Lee Jae Myung faces a pivotal foreign policy test, heading into back-to-back summits in Tokyo and Washington that reflect the wider struggle of U.

When South Korean President Lee Jae Myung meets U.S. President Donald Trump next week for their first summit, he'll face calls to pay more for the upkeep of American troops on the peninsula with security issues expected to be among the top agenda items.