US military base in central Okinawa, with a residential area in the background The Japanese island of Okinawa is the reluctant host of dozens of US military bases - and a row over moving an airfield has sparked an angry stand-off. Shuri Castle stands on a hill above the Okinawan capital, Naha. It used to be the seat of the Ryukyu kings, who ruled over an archipelago south of Japan and north of Tai