Columbia subject headings:
European Union countries--Foreign relations--Kosovo (Republic)
Kosovo War, 1998-1999.
Harvard subject headings:
European Union
European Union countries--Foreign relations--21st century.
European Union countries--Politics and government--20th century.
European Union countries--Politics and government--21st century.
Princeton subject headings:
European Union countries--Foreign relations--Kosovo (Republic).
Kosovo War, 1998-1999.