Columbia subject headings:
World War, 1914-1918--Causes.
World War, 1914-1918--Political aspects.
Harvard subject headings:
Conference papers and proceedings.
Military art and science--History--Congresses.
Strategy--Congresses
World War, 1914-1918--Causes--Congresses.
World War, 1914-1918--Congresses
Princeton subject headings: