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

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

At a summit meeting in Washington, D.C., on Monday, the U.S. and South Korean presidents will discuss modernizing their 71-year-old alliance and fleshing out a trade deal reached last month.