Columbia subject headings:
Diplomatic and consular service--European Union countries.
European External Action Service.
European Union countries--Foreign relations administration.
European Union countries--Foreign relations.
Harvard subject headings:
Diplomatic and consular service--European Union countries.
European External Action Service.
European Union countries--Foreign relations administration.
European Union countries--Foreign relations.
Princeton subject headings:
Diplomatic and consular service--European Union countries.
European External Action Service.
European Union countries--Foreign relations administration.
European Union countries--Foreign relations.