This contribution analyses the relationship between the role of democracy in international law and UN Peacekeeping missions. It concludes that a right to democracy has not become a legal norm yet but is widely accepted as precondition for peace. It is therefore included in the mandate of robust, integrated UN peace-keeping missions. An analysis of the development and impact of five UN peace-keeping missions to Haiti informs about the UN peace-keepers relevance in the Haitian conflict resolution and regime change.