Columbia subject headings:
Europe--Ethnic relations.
European Union countries--Relations--United States.
Muslims--Europe--Social conditions.
Security, International.
United States--Relations--European Union countries.
Harvard subject headings:
Europe--Ethnic relations.
European Union countries--Relations--United States.
Muslims--Europe--Social conditions.
Security, International.
United States--Relations--European Union countries.
Princeton subject headings:
Europe--Ethnic relations.
European Union countries--Relations--United States.
Muslims--Europe--Social conditions.
Security, International.
United States--Relations--European Union countries.