title: 9. Realism
abstract: This chapter examines the claim that realism offers the most powerful explanation for the state of war that is the regular condition of life in the international system. It first provides an overview of the theory of realism before discussing whether there is one realism or a variety of realisms. It argues that despite some important differences, all realist theories share a set of core assumptions and ideas. It goes on to consider these common elements, namely self-help, statism, and survival. 
journal: Oxford University Press eBooks