Šiuolaikinės tarptautinės sistemos politinės struktūros transformacija ; The transformation of the polar structure of contemporary international system
In the beginning of the 21st century different features of the transformation of the contemporary international system could be studied. Among these features changes in nature of threats, actions of main actors of international system concerning changing security environment, appearance of new centers of power and military confrontation between the USA and Russia could be distinguished. Impact of polarity of the international system towards international security was one of the most popular topics of international relations in the second half of the 20th century. Concept of polarity as certain distribution of power in international system became very popular due to Realism school of international relations. Many different studies were made concerning this topic in the Cold War period, but after the end of the Cold War topics of international system and polarity in the international system seemed as unimportant and lost its significance. The new importance of polarity conception was brought by the emergence of new types of threats to international security and by unequal distribution of power in the international system that created unipolar structure with one superpower and several smaller centers of power in the beginning of the 21st century. In this article few presumptions and conclusions concerning the transformation of the contemporary polar structure of international systems were made. First presumption is that contemporary international system is transforming from strict unipolarity with one exceptionally strong superpower to modified unipolarity with one superpower and several emerging centers of power.[.].