The collapse of the bilateral order resulted in the emergence of clear gaps in the world security system, which resulted in the emergence of severe asymmetric problems that nation states, i.e. the basic participants of international relations, should deal with. Therefore, in the current discourse of international relations sciences, the topic of hybrid wars is gaining popularity, which is additionally motivated by the attempt to explain what is happening in the conflict in eastern Ukraine. It is therefore worth analyzing the topic of hybridization of war, i.e. the fundamental variable in international relations. Moreover, it was necessary to describe the radical changes in the entire world order, in which the conflict between various political entities, not only nation states, was gaining importance. A related aspect is also the evolution of multidimensional instruments of foreign policy, which are necessary to protect one's raison d'état.