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

Washington’s increasing focus on Beijing is straining the decades-old alliance between South Korea and the United States.

South Korean President Lee Jae Myung is in Tokyo to hold his first full summit with Japanese Prime Minister Shigeru Ishiba in a visit largely aimed at showcasing friendly ties between the two Asian neighbors that now face common challenges from America,