Without peace, no development. It is undoubtedly this simple constatation that motivates donors to keep investing more in conflict prevention. This is obviously the case in the Democratic Republic of Congo, where the protracted conflict in eastern Congo puts a brake on the country’s revival. Donors are leaving the trodden path of development co-operation to turn their efforts to disarmament, demobilization and re-integration of combatants, to the security sector, as well as towards the rule of law and the protection of human rights. But to what avail ? It is already a huge challenge to achieve development results. Can donors then even hope to influence conflicts ? This joint evaluation is an attempt to answer that question. The policy of six bilateral donors and five multilateral organisations was scrutinised ; the major drivers of conflict were identified and fifty interventions were evaluated in order to find concrete proof that these drivers of conflict can indeed be influenced. The result is a well-balanced report that does not claim to be the be-all and end- all of conflict prevention, but offers conclusions and recommendations for future reflection. It can feed policy making in the field of intervention strategies for peace building and conflict prevention in Eastern Congo.