The monograph is devoted to the role of the European Union in the construction of new regional security architecture in connection with the radical changes in the international political and geostrategic situation of the post-bloc world order.

A significant aspect of the relevance of the subject of this study proposed to the reader's attention is the scientific need for an analysis of contemporary strategies of leading international actors in the formation of new security architecture in Europe.

In the conditions of the significant strategic uncertainty of the current stage in the evolution of global politics, largely due to its transition, in designing the model of an optimal international political strategy, it is necessary to take into account the key trends in international political dynamics, as well as the capabilities of specific states and international unions.