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Sustainability for Resilience

Published: 4 March 2026
E-paper
At the 2025 NATO Summit in The Hague, allies pledged to spend 5% of GDP on defence by 2035 – including 1.5% for resilience and security-related investment. Yet what counts towards this 1.5% remains unclear. As European governments face mounting fiscal pressure, funds must be spent wisely. Strategic investment in infrastructure, rail, clean energy, resilient supply chains and nature restoration could reinforce deterrence, strengthen economic competitiveness and address climate and biodiversity risks in tandem.
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Phalanx of defence pacts? Mapping bilateral defence partnerships in Europe

Published: 23 October 2025
Böll EU Brief
Europe’s defence map is being redrawn. Our new Böll EU Brief tracks over 160 defence partnerships signed since 2014 among EU countries, the UK and Ukraine – most of them after Russia’s full-scale invasion of Ukraine. Bilateralism boosts trust, interoperability and procurement speed, but also risks duplication and fragmentation. To turn this patchwork into strategy, the EU and NATO should map and integrate these deals into joint planning, strengthen the European Defence Agency’s role, and use bilaterals to offset declining US support.  
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Budgeting for security?

Published: 27 May 2025
Discussion paper
The ReArm Europe/Readiness 2030 proposal has limited fiscal impact and is unable to address the persistent lack of coordination among Member States, as it does not adequately incentivise joint procurement. Instead, the authors suggest to future-proof the EU's fiscal rules and develop an EU grants-mechanism tied to strategic cooperation, greater parliamentary oversight, and a broader concept of security that includes climate and democratic resilience.

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