....The southern tip of the Ryukyu Islands sits only about 80 miles east of the Senkakus. Unlike the uninhabited Senkakus, the Ryukyus host not only roughly 1.5 million Japanese residents, but also the U.S. Marine and Air Force bases that anchor the U.S. presence in the East China Sea. Occupying the Ryukyus would fracture the U.S. strategic position in East Asia -- separating U.S. forces based in Japan (to the north) from those at Bahrain, the other permanent U.S. hub in Asia, far to the west. At a bare minimum, U.S. ships and aircraft would have to detour around Chinese-held...