Japan and the United States agreed Sunday to upgrade the command functions of the U.S. forces in Japan for better coordination of their bilateral alliance amid China's assertiveness in the region and the North Korean nuclear threat, while pursuing expanded coproduction of air defense missiles.The foreign and defense ministers of the two countries also vowed to explore ways to strengthen so-called extended deterrence, which includes U.S. nuclear protection provided to Japan, in their first-ever ministerial talks on the issue that followed the "two-plus-two" security talks in Tokyo.At the out…READ FULL ARTICLE