With US foreign policy in flux, Japan and South Korea are finding common ground on trade, defense, and demographic challenges.

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.

South Korea touted a broad range of U.S. investment plans by its companies at Monday's summit between U.S. President Donald Trump and South Korean President Lee Jae Myung, spanning shipbuilding, nuclear energy,