Columbia subject headings:
Germany--Foreign relations--1871-1918.
Germany--History--1871-1918.
World War, 1914-1918--Germany.
Harvard subject headings:
Germany--Foreign relations--1871-1918.
Germany--History--1871-1918.
World War, 1914-1918--Germany.
Princeton subject headings:
Germany--Foreign relations--1871-1918.
Germany--History--1871-1918.