Germany is a federal parliamentary republic. It has no monarchy, but this week, the German government banned an extremist group that claims otherwise — a fringe movement known as the Kingdom of Germany. In coordinated raids across seven states, police arrested the group’s self-proclaimed king, Peter Fitzek, along with three of his followers. Authorities say the group, once dismissed as a collection of off-grid eccentrics, is now being investigated as a criminal organization. The World’s Europe correspondent Orla Barry reports.