Columbia subject headings:
Europe--Politics and government--1918-1945.
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Campaigns--Soviet Union.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Soviet Union--Diplomatic history.
World politics--1933-1945.
Harvard subject headings:
Europe--Politics and government--1918-1945.
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Campaigns--Soviet Union.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Soviet Union--Diplomatic history.
World War, 1939-1945--Soviet Union.
World politics--1933-1945
Princeton subject headings:
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Soviet Union.