Columbia subject headings:
Harvard subject headings:
Europe--History--1918-1945.
Nineteen forty, A.D.
World War, 1939-1945--Europe.
Princeton subject headings:
Europe, Western--History--Congresses.
World War, 1939-1945--Campaigns--Western Front--Congresses.
World War, 1939-1945--Europe, Western--Congresses.