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.

By David Brunnstrom, Idrees Ali and Ju-min Park WASHINGTON/SEOUL (Reuters) - 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.

South Korean President Lee Jae Myung is set to embark on his first overseas trip focusing on bilateral diplomacy this weekend starting with a rare Japan visit that will likely set the stage for his first meeting with President Donald Trump in the US days later.