Columbia subject headings:
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Diplomatic history.
Harvard subject headings:
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Diplomatic history.
Princeton subject headings:
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Diplomatic history.