Columbia subject headings:
Japan--Foreign relations--Soviet Union.
National security--Japan.
National security--Soviet Union.
Soviet Union--Foreign relations--Japan.
Harvard subject headings:
Japan--Foreign relations--Soviet Union.
National security--Japan
National security--Soviet Union
Soviet Union--Foreign relations--Japan.
Princeton subject headings:
Japan--Foreign relations--Soviet Union.
National security--Japan.
National security--Soviet Union.
Soviet Union--Foreign relations--Japan.