Columbia subject headings:
Great Britain--Foreign relations--1910-1936.
Great Britain--Foreign relations--1936-1945.
Great Britain--Foreign relations--Ireland.
Ireland--Foreign relations--Great Britain.
Harvard subject headings:
Great Britain--Foreign relations--1910-1936.
Great Britain--Foreign relations--1936-1945.
Great Britain--Foreign relations--Ireland.
Ireland--Foreign relations--Great Britain.
Princeton subject headings:
Great Britain--Foreign relations--1910-1936.
Great Britain--Foreign relations--1936-1945.
Great Britain--Foreign relations--Ireland.
Ireland--Foreign relations--Great Britain.