Columbia subject headings:
Civil supremacy over the military--European Union countries.
Democracy--European Union countries.
Internal security--European Union countries--International cooperation.
Intervention (International law)
National security--European Union countries--International cooperation.
Harvard subject headings:
Democratization--European Union countries.
European Union
European Union countries--Politics and government.
Globalization--European Union countries.
Internal security--European Union countries
Princeton subject headings: