Complex sentence: The European Forum for Urban Security (Efus) is a non-governmental organisation established in 1987 in Barcelona under the auspices of the Council of Europe supporting a network of more than 250 European local authorities in 16 countries.
Split into simpler sentences: The European Forum for Urban Security (Efus) is a Non Governmental Organisation established in 1987, in Barcelona-under the auspices of the Council of Europe. Its network gathers more than 250 European local authorities in 16 countries.