Columbia subject headings:
Europe--Politics and government--1871-1918.
Great Britain--Foreign relations--1901-1936.
World politics--1900-1918.
Harvard subject headings:
Europe--Politics and government--1871-1918.
Great Britain--Foreign relations--1901-1936.
World politics--1900-1918
Princeton subject headings:
Europe--Politics and government--20th century.
Great Britain--Foreign relations--1901-1936.
World politics.