The text is considered a classic in international relations theory, and is often dubbed one of the first modern realist texts, following in the fashion of Thucydides, Machiavelli and Hobbes. Carr's analysis begins with the optimism that followed World War I, as embodied in the League of Nations declarations and various international treaties aimed at the permanent prevention of military conflict. He proceeds to demonstrate how rational, well-conceived ideas of peace and cooperation among states were undermined in short order by the realities of chaos and insecurity in the international realm. By assessing the military, economic, ideological, and juridical facets and applications of power, Carr brings harsh criticism to bear on utopian theorists who forget to consider the exigencies of survival and competition.