Columbia subject headings:
Harvard subject headings:
Japan--Foreign relations--United States.
Ryukyu Islands--International status.
United States--Foreign relations--Japan.
World War, 1939-1945--Territorial questions--Japan--Ryukyu Islands.
Princeton subject headings:
Japan--Foreign relations--United States.
Ryukyu Islands--International status.
United States--Foreign relations--Japan.
World War, 1939-1945--Territorial questions--Japan--Ryukyu Islands.