Columbia subject headings:
Germany--Foreign relations--Turkey.
Islam--20th century.
Turkey--Foreign relations--Germany.
World politics--1900-1918.
Harvard subject headings:
Germany--Foreign relations--Turkey.
Islam--20th century
Turkey--Foreign relations--Germany.
World politics--1900-1918
Princeton subject headings:
Eastern question.
Germany--Foreign relations--Turkey.
Turkey--Foreign relations--Germany.