Who supervises the subordinate that occupies the majority of Chatan, Japan?
Chatan, Okinawa:  53.5% of the land area of the town is covered by United States military bases. United States Forces Japan: The United States Forces Japan (USFJ) (在日米軍 , "Zainichi Beigun" ) is an active subordinate unified command of the United States Pacific Command (USPACOM).
United States Pacific Command