Japan and South Korea make progress on trade dispute ahead of historic summit.

Japan and South Korea have taken steps towards resolving their trade dispute ahead of a summit between their leaders. South Korea has agreed to withdraw its complaint to the World Trade Organization once Japan lifts export controls on South Korea. The two countries are seeking to form a united front with their mutual ally, the U.S., driven by shared concerns about North Korea and China. The summit comes as a series of dramatic events underscores how Northeast Asia is dividing into blocs.