Columbia subject headings:
Catholics--Germany--History--20th century.
Germany--History.
National characteristics, German.
War.
Harvard subject headings:
Catholics--Germany--History--20th century.
Germany--History.
National characteristics, German.
War
World War, 1914-1918--Germany.
Princeton subject headings:
Germany--Foreign public opinion.
Germany--Politics and government--1871-1918.
War.