Columbia subject headings:
Japan--Territories and possessions--History.
Kuril Islands (Russia)--History.
Russia--Territories and possessions--History.
Harvard subject headings:
Japan--Territories and possessions--History.
Kuril Islands (Russia)--History.
Russia--Territories and possessions--History.
Princeton subject headings:
Japan--Foreign relations--Russia (Federation).
Japan--Foreign relations--Russia.
Japan--Foreign relations--Soviet Union.
Kuril Islands (Russia)
Russia (Federation)--Foreign relations--Japan.
Russia--Foreign relations--Japan.
Soviet Union--Foreign relations--Japan.