ABSTRACT
This chapter argues that existing comparative accounts tend to overstate the differences between the two regions and that this assessment is based on a superficial misreading of the European model. This model is not as coherent, integrated, and institutionalized as is often assumed. The chapter presents the key principles underlying the territorial security model that has emerged in North America after 9/11, highlighting the parallels with the European experience. It then considers some of this model's most relevant policy applications and compares them to initiatives proposed on the other side of the Atlantic. The chapter further explores possible future scenarios characterizing relations between North America and Europe over territorial security and the prospect for further transatlantic convergence in this policy field. One of the implications of the externalization of territorial security is that foreign affairs would become a central component of a policy field that hitherto had been focused mainly on "internal" matters.
