NATO defence spending: navigating the noise

IISS  |  Fenella McGerty

European NATO allies will reach a collective defence spending total of nearly USD639bn in 2026, driven by a structural shift that allocates 36.2% of military budgets toward equipment procurement and research. German military expenditure growth leads this regional expansion with real-term budget increases of 23.2% in 2026, far outstripping spending growth in France and the United Kingdom.

This fiscal acceleration reflects systemic efforts across the Alliance to align national budgets with NATO targets requiring 3.5% of gross domestic product for core defence and 1.5% for broader security by 2035. However, meeting these targets has prompted widespread accounting recalibrations and creative budgetary maneuvers. Germany and the United Kingdom have incorporated civil protection, intelligence, and IT infrastructure into their core defense baseline estimates, while Denmark established a DKK50bn Acceleration Fund. Without enhanced transparency and standardized NATO reporting guidelines, domestic fiscal constraints risk eroding allies' long-term procurement credibility and public support.

Comment

The rapid movement beyond the 20% NATO equipment procurement benchmark reflects a structural trade-off between immediate hardware recapitalisation and long-term sustainment funding. Incorporating non-military intelligence allocations and deferred departmental savings into core defence baselines masks the true fiscal burden of expanding force structures. Once major procurement lines under initiatives like Germany's defence expansion mature, the resulting operations and maintenance tails will exert severe pressure on European operating budgets.

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