Peacekeeping has been the technique most frequently used by, and associated with, the United Nations to end conflicts and to preserve peace. In addition, international and regional organizations have also performed peacekeeping functions. Since the establishment of the first UN peacekeeping mission, UNEF I, in 1956, international lawyers have raised questions about the legal aspects of these operations. Traditionally, they analyzed the constitutional basis for peacekeeping and tried to allocate the authority under the UN Charter for peacekeeping among the Security Council, the General...