Columbia subject headings:
Harvard subject headings:
Japan--Military relations--United States.
Military assistance, American--Japan--History.
Military bases, American--Japan--Okinawa-ken--History.
Okinawa-ken (Japan)--History.
United States--Military relations--Japan.
Princeton subject headings:
Japan--Foreign relations--United States.
Military assistance, American--Japan--History.
Military bases, American--Japan--Okinawa-ken--History.
Okinawa-ken (Japan)--History--20th century.
Okinawa-ken (Japan)--History--21st century.
United States--Foreign relations--Japan.