Columbia subject headings:
Harvard subject headings:
Germany--Foreign relations--1933-1945.
Germany--Foreign relations--Ireland.
Great Britain--Foreign relations--Ireland.
Ireland--Foreign relations--1922-
Ireland--Foreign relations--Germany.
Ireland--Foreign relations--Great Britain.
Neutrality.
World War, 1939-1945--Diplomatic history.
Princeton subject headings:
Germany--Foreign relations--1933-1945.
Germany--Foreign relations--Ireland.
Great Britain--Foreign relations--Ireland.
Ireland--Foreign relations--1922-
Ireland--Foreign relations--Germany.
Ireland--Foreign relations--Great Britain.
Neutrality--Ireland--History--20th century.
World War, 1939-1945--Diplomatic history.