This chapter - focusing upon the five Nordic countries of Denmark, Finland, Iceland, Norway and Sweden - evaluates and compares their attitudes and responses to the continuing challenges of an evolving and increasingly differentiated European Union. The central argument is that although the Nordic countries are often seen as a homogeneous group of nations with similar perspectives towards questions of European integration, the reality is that the Nordic region has not been immune from the pressures of differentiated integration, and the policies of the respective countries can be notably different. The book chapter is published in a new works edited by Kenneth Dyson and Angelos Sepos and published in the highly prestigious Palgrave Studies in European Union Politics book series