Peace operations, conducted under UN auspices and leadership, have the following requirements: political priority - peace operations are political actions but not intended to impose a long term solution. It is important that the soldiers involved to understand the strategic objective of the mission and their importance in achieving it; the objective - or the end state refers usually to achieving a stable and secure environment and to alleviate suffering. While political objectives may be clear, setting specific military missions to support them may be more difficult; the threat - besides facing military forces, the forces of peace missions may be required to deal with irregular forces, militias, criminal elements etc. Size, endowment, level of training, discipline and motivation of each fraction requires careful analysis; criteria for engagement / disengagement - the political decision to engage in a peace mission is based on several factors and one of the components will be military criterion. In the same manner and at the same time will also be developed the final aim, which means those criteria / conditions when they are met - may mark the success of the operation (in military terms), including conditions that will appear at the end of military involvement; other reasons - to adapt military technology and procedures to a peace mission involves other features that must be taken into account in planning and execution of the mission (eg. Monitoring the dynamics of events and adapting to possible variations that occur).