Columbia subject headings:
European Union--Religion.
Martyrdom--Christianity--Congresses.
Martyrdom--Islam--Congresses.
Martyrdom--Judaism--Congresses.
Religious pluralism--European Union countries.
Harvard subject headings:
European Union--Religion.
Martyrdom--Christianity--Congresses.
Martyrdom--Islam--Congresses.
Martyrdom--Judaism--Congresses.
Religious pluralism--European Union countries.
Princeton subject headings: