ABSTRACT
The aim of this chapter is to contribute to a theory of state behaviour. The theory applies to the vast majority of states, i.e. all non-pole powers. Its main assertion is that states are affected in very different ways by one and the same systemic or regional polarity, depending on their location (‘constellation’) in it. Constellation, therefore, carries the burden of explanation. The spatial dimension of constellation theory makes it a species of geopolitics. There are, in turn, several types of constellation theory. The one developed here applies to unipolar regional integration, i.e. the situation characterizing most of postCold War Europe.
