Columbia subject headings:
Japan--Foreign relations--Soviet Union.
Russo-Japanese War, 1904-1905--Causes.
Soviet Union--Foreign relations--Japan.
Harvard subject headings:
Japan--Foreign relations--Soviet Union.
Russo-Japanese War, 1904-1905--Causes
Soviet Union--Foreign relations--Japan.
Princeton subject headings:
Japan--Foreign relations--Russia.
Russia--Foreign relations--Japan.
Russo-Japanese War, 1904-1905--Causes.