Escalating tensions between Japan and South Korea, both key U.S. allies in East Asia, could change long-standing economic and security structures in the region across the board, possibly benefiting China and North Korea, according to foreign affairs experts.As long as Tokyo and Seoul remain at odds over bilateral matters, weakened trilateral cooperation with Washington may allow Beijing to boost its influence in economic, technology and security fields in East Asia amid U.S.-China trade and currency spats, they say.Frayed security relations among Japan, South Korea and the United States cou…READ FULL ARTICLE