\The PFI operational guidelines provide a structured yet flexible framework for the implementation of the Peace Forest Initiative (PFI) in different contexts. The guidelines reflect the comprehensive approach of the PFI by integrating land and environmental restoration, conflict-sensitive strategies, governance aspects and peace-building efforts. They compile principles, operational processes, conceptual frameworks and methodologies related to environmental peace-building efforts for practitioners to apply at all levels. Given the holistic nature and conceptual approach of the guidelines, their usage goes beyond the implementation of the PFI activities. Ideally, they can serve as a practical guide for all actors involved in environmental and scientific peacE-building processes.