The relationship between the EU and NATO has traditionally been characterised by a degree of ambiguity and competition but also by attempts at coordination and cooperation.

In the context of Russia’s war on Ukraine, the EU and NATO have played crucial and mutually complementary roles, taking advantage of their respective strengths.

However, there are also many areas in which their efforts overlap and closer cooperation would be necessary. Thus far, only small steps in this direction have been taken.

Ideally, the EU and NATO would work together to develop a more strategic outlook on issues such as developing Europe’s military capabilities, strengthening the security and defence of membership aspirants as well as managing crises beyond EU and NATO territory.

Formal relations between the EU and NATO remain complicated. However, there are ways to work around the existing obstacles to EU-NATO cooperation, not least in the capitals of EU and NATO member states.

Senior Research Fellow