Columbia subject headings:
European Union countries--Foreign relations.
Germany--Foreign relations.
Germany--Politics and government.
International relations.
National security--Germany.
Security, International--European Union countries.
Harvard subject headings:
European Union countries--Foreign relations.
Germany--Foreign relations.
Germany--Politics and government.
International relations
National security--Germany
Security, International--European Union countries
Princeton subject headings:
European Union countries--Foreign relations.
Germany--Foreign relations.
Germany--Politics and government.
International relations.
National security--Germany.
Security, International--European Union countries.