This chapter explores the development of a stronger and more cross-sectoral foreign, security and defense policy in the EU and what this development implies for Norway. It explores current characteristics, before applying the three scenarios in a discussion of how EU foreign, security and defense policies are likely to develop going forward. We find little support for a scenario suggesting a scaling down of EU integration. On the contrary, the EU is developing rapidly towards deeper integration in this domain. We also observe a strong securitization across other policy areas, to the extent that most EU policies today have a security dimension. We however also find that both the level of integration and the participation of member states and non-EU states vary across policy domains, implying that EU foreign, security and defence policy can best be described as differentiated. For Norway, rapid EU foreign, security and defence policy developments, securitization of other policy domains, and the increase in cross-sectoral legislation and policies have proved challenging. In a more demanding and uncertain geopolitical setting, with war in Europe and a weakening of transatlantic relations, close security cooperation with EU is more important yet more challenging than before.