UN is sending peacekeeping operations all over the world. The paper will highlight that UN is not going only with their peacekeeping operation personnel, UN is also bringing private military companies into their ranks. This paper will focus on UN peacekeeping operations in Africa with the focus of non-interstate operations. Traditionally would not the Just war theory be the theory to apply to peacekeeping operations but by UN orthodox behavior of bringing private military contractors into peacekeeping operations, just war theory becomes appropriate. The purpose of this paper is to bring light on UN use of PMC and if PMC has increased UN security during peacekeeping operations. To be able to shed this light, a more extensive empirical study will be made to see UN practice with PMC by descriptive statistics. The paper finds that PMC has been an active force within peacekeeping operations and that PMC is performing several military tasks for UN. It further sees that UN fatalities are increasing in the cases when PMC has been present. Further insight into peacekeeping operation is that higher taxpaying nations are sending fewer troops and commanders compared to less taxpaying nations.