What role can local elected representatives and local authorities play in preventing radicalisation leading to violent extremism? About one hundred local elected representatives, decision-makers and specialists from 22 European countries are meeting in Aarhus, Denmark, on 18 November to discuss this issue. The conference is being held jointly by the Congress of Local and Regional Authorities of the Council of Europe and the European Forum for Urban Security (Efus) in partnership with the cities of Aarhus and Rotterdam, and forms part of the broader initiative “Towards an alliance of European cities against violent extremism”. It will be opened by Jacob Bundsgaard, Mayor of Aarhus, Leen Verbeek, Vice President of the Congress of Local and Regional Authorities, Guilherme Pinto, President of EFUS and – via video message – Ahmed Aboutaleb, Mayor of Rotterdam (Netherlands), with specific security measures.