Büro Concordia was an organisation of Joseph Goebbels' Ministry of Propaganda in Nazi Germany that operated clandestine or "black" radio stations that broadcast into Allied and neutral countries. The service was designed to appeal to discontented minorities and included Radio Caledonia, which was targeted at Scottish nationalists, and the Christian Peace Movement station which was aimed at Christian pacifists. It was presented as though it was domestically generated by internal dissidents rather than broadcast from abroad by the Nazi regime.