Norway has cooperated closely with the EU on foreign, security and defense policy since the late 1990s. It seems fitting to look at this cooperation as a supplement to – or spin-off of – the EEA agreement. As this field is now changing, with new ambitious initiatives, and that the EU’s relations with third countries will generally be reassessed as a result of Brexit, this will have consequences for Norway’s relations with the EU in this area. Among other things, we see trends towards what we label a possible “EEA-isation” of this field. This focus article analyses three developments and potential consequences for Norway. The first concerns EU decisions on what is happening within the EU, namely PESCO and the decision to strengthen the common European defense market. The second concerns initiatives outside of the EU, such as the French European Intervention Initiative (EI2), which must be seen in relation to the first. The third is Brexit, which is an attempt to take the UK into the “third country club” where Norway so far has been the key player. What are the consequences of the new initiatives taken within and outside the EU for Norway, and what does Brexit do to Norway’s agency as a partner to the EU in the area of foreign, security and defense policy?