Despite many achievements and massive lobbying for women inclusion by UN Women and others, women inclusion and gender issues are still not seen as a 'MUST HAVE" part of peace negotiations and their implementation by most conflict parties and mediators. A central problem is the lack of practical knowledge about the functioning and impact of inclusion on peace processes. Hence, negotiations and peace processes are too often designed on the basis of untested hypothèses or normative biases instead of solid evidence-based findings.