In this article, two blocks of problems were highlighted: the definition of the categorial-ideational apparatus and the conceptual-theoretical foundations of structural-systemic research of international relations and the analysis of the evolution of international systems in the conditions of structural transformations and international order in the context of changing configuration types after the end of the Cold War. International relations in the post-Cold War period have two stages in their evolution, through the alternation of stages of cooperation and conflict, and the structure of the post-bipolar international system until the events of September 11, 2001 was uni-polycentric, later becoming polycentric.

In this article, two blocks of problems were highlighted: the definition of the categorial-ideational apparatus and the conceptual-theoretical foundations of structural-systemic research of international relations and the analysis of the evolution of international systems in the conditions of structural transformations and international order in the context of changing configuration types after the end of the Cold War. International relations in the post-Cold War period have two stages in their evolution, through the alternation of stages of cooperation and conflict, and the structure of the post-bipolar international system until the events of September 11, 2001 was uni-polycentric, later becoming polycentric.