Columbia subject headings:
Europe--Foreign relations--Germany.
Europe--Relations--Germany.
Germany--Foreign relations--Europe.
Germany--Military policy.
Germany--Politics and government--20th century.
Germany--Relations--Europe.
National security--Germany.
Harvard subject headings:
Constitutional history--Germany
European Union countries--Foreign relations--Germany.
Germany--Foreign relations--European Union countries.
Germany--Military policy.
Security, International.
Princeton subject headings: