15 May 2026

More Europe in defence – three pathways

Sauli Niinistö / Steven Blockmans / Edward Arnold / Bob Deen / Daniel Gros

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Russia’s war of aggression against Ukraine and destabilising actions by the second Trump administration have sent geopolitics into a tailspin. As turmoil in the Middle East and around the world grows, the US is reviewing its approach to NATO and is considering deploying its assets away from Europe. These and other factors have pushed Europe towards an inflection point in considering how to safeguard its own security.

Public support for defence has never been greater. This solidifies a trend that has accelerated since Russia’s full-scale invasion of Ukraine in February 2022. Most political parties across Europe agree on the need to address public anxiety by moving from words to deeds and implementing an agenda that gives them more security and agency in the defence of the European theatre by 2030.

It’s at this critical juncture that CEPS, RUSI, Clingendael and IEP joined forces to substantiate what politicians often casually refer to as a European pillar of NATO – though few can say what this means in practice or whether it would offer a credible deterrent. This report outlines three possible pathways to shore up Europe’s defences: a more European NATO; a new European multilateralism; and EU-led defence cooperation.

 

Sauli Niinistö is a former President of Finland and the Chair of the Task Force.

To read an Expert Commentary that summarises the key findings of this report, please click here.