Classical realist thought provides a diagnosis of the significance nuclear weapons that calls into question the very possibility of politics in the nuclear age. While sharing similarities with this...

Robert Jervis's System Effects was published just as systems thinking began to decline among political scientists, who were adopting increasingly strict standards of causal identification, privileging experimental and large-N studies. Many politically consequential system effects are not amenable to research designs that meet these standards, yet they must nonetheless be studied if the most important questions of international politics are to be answered. For example, if nuclear weapons are considered in light of their effect on the international system as a (...) whole, it becomes clear that they have obviated the need for a global balance of power by allowing states to counterbalance threats by acquiring nuclear weapons rather than investing in massive conventional balancing efforts. Similarly, systems thinking should inform our understanding of the impact of a “unipolar power” such as the United States, which has enjoyed an overwhelming preponderance of conventional military power since the fall of the Berlin Wall. A unipolar power is likely to become involved in frequent conflicts because it is not restrained by the presence of a peer competitor. (shrink)

This article explores one of the key themes of Hans J. Morgenthau's moral theory, the concept of the lesser evil. Morgenthau developed this concept by reference to classical political theory, especially the articulation of the lesser evil found in Aristotle and Epicurus. The article begins by differentiating Morgenthau's work from that of E. H. Carr, whom he regards as engaged in a Quixotic quest to provide Machiavellism with greater ethical purpose. The article also contrasts the ethics of the lesser evil (...) with Kantian ethics. Morgenthau places the lesser evil in the context of a modernity that has lost the capacity to think about the relationship between politics and morality and stresses the importance of coming to grips with the existential demands of love and power. Finally, the article argues that despite the ubiquity of evil, the existence of the lesser evil gives rise to the development of specifically political virtues such as prudence and moderation which raise the possibility of moral politics beyond mere expedience. (shrink)

The unique dangers raised by the possibility of nuclear warfare have long prompted intensive debates about what political action is needed to avoid it. While most scholars contend that it is possib...