After the collapse of the bipolar world, multilateral initiatives & organizations entered a state of crisis, but at the same time, their importance increased. The author analyzes one form of multilateral involvement, the UN peacekeeping operations. In the last five years, their number has significantly increased, with the most important one in the territory of former Yugoslavia. Although many aspects of that operation are negative, in the future, they might prove useful for the reform of the concept of peacekeeping operations. The author particularly emphasizes the necessity for these peacekeeping operations to make a shift from the prevention of hostilities toward the imposition of peace, as well as the need to separate this aim from humanitarian activities, which should be assigned to specialized international organizations. The peacekeeping operations should evolve into a sort of multilateral interventionism that, while undoubtedly restricting individual states' sovereignty, strives to establish order. They could be supplemented with other means of pressure at the UN's disposal: sanctions, diplomatic isolation, or arms control. Adapted from the source document.