NATO allies split over defence spending targets ahead of summit

Ahead of the summit, NATO members are wrestling over a headline goal of 5% of GDP for defence and security spending by 2035. The proposal would lift the alliance’s existing 2% baseline, agreed in 2014, and divide a new commitment between core military budgets and broader infrastructure for resilience.

The argument is driven by Russia’s war against Ukraine, concern about the durability of US support, and the need to replace weapons and munitions depleted since 2022. It also reflects a widening gap between eastern members, which want faster investment, and several western governments facing constrained public budgets.

For Australia, the negotiations are not a domestic defence decision, but they shape the security environment across the Indo-Pacific. Canberra works with NATO through AUKUS and the Indo-Pacific Partners, while European members remain major diplomatic and trading partners. A stronger European defence base could improve regional deterrence; a fiscal backlash could divert attention and resources.

A five per cent goal reveals the alliance’s fault lines

A likely summit formula would place about 3.5% of GDP on core defence and 1.5% on defence-related infrastructure, cyber resilience and emergency preparedness. Supporters say this separates usable military capacity from investments in ports, grids, data systems and civil protection that may not fit traditional defence accounting.

The split is partly about timing and priorities. Poland, the Baltic states and other eastern members tend to favour higher, faster targets because of the direct threat from Russia. Spain, Belgium and Italy have pressed for flexibility, reflecting debt levels, political commitments to other spending and less exposed geography.

In Washington, the domestic contest over Senate control stakes shows why NATO’s burden-sharing debate cannot be separated from electoral politics. Any American push for higher European spending can be diluted by opposition to the war in Ukraine or by doubts about the costs of alliance commitments.

Why spending percentages are only the starting point

GDP provides a simple benchmark, but it does not reveal whether troops are trained, ships can sail, or missiles can be fired at scale. An ally can meet a percentage by assigning broad security costs to defence while leaving severe gaps in ammunition, air defence, long-range strike, logistics and maintenance.

Capability targets matter because modern warfare consumes equipment quickly and requires industry to sustain production. Allies also compete for the same engineers, factories and components, so buying separately can raise costs and create another source of disagreement. Joint procurement and common standards are more useful than five incompatible national fleets.

The summit also needs to clarify which expenditure counts. If 1.5% includes civilian infrastructure without a direct security link, members could meet the headline number while moving too slowly on combat power. Clear definitions, annual milestones and independent review would make the pledge harder to present as mere accounting.

Domestic politics decide how much Europe can sustain

Higher defence spending will be judged against hospitals, housing, transport and energy bills. Several governments already face protests, coalition disputes and debt constraints, and leaders risk losing support if they describe the target as an unavoidable blank cheque rather than a phased national choice.

The United States carries roughly two-thirds of NATO’s defence expenditure, giving it the greatest leverage over allies’ budgets. Washington wants European members to assume more of the burden, yet European governments also worry about dependence on American weapons, intelligence and long-term guarantees. The proposed target helps both sides, but for different reasons.

Smaller members face a particular problem. Fixed costs for surveillance, command systems and readiness can overwhelm a narrow domestic defence market. They may need pooled purchasing, shared services or alliances with non-NATO countries. That approach can lower costs, but it also makes national control harder to defend publicly.

Australia has a stake in the alliance’s choices

Canberra controls the national defence budget, but it has to explain every major acquisition through parliamentary scrutiny and public debate. Australia has generally kept defence spending near the 2% of GDP benchmark and now faces its own choices about submarines, missiles, aircraft and resilient infrastructure, so the NATO arithmetic offers a useful comparison rather than a ready-made answer.

Australian priorities are shaped by geography and the needs of Pacific partners: maritime surveillance, undersea security, humanitarian assistance and recovery after cyclones and bushfires. These missions influence what Canberra buys and how it trains. In Australian political shorthand, a “shiny new toy” is not the same as a deployable capability; readiness, supportability and scale determine whether a platform is genuinely useful.

The domestic defence industry also operates differently from a large European market. Australian suppliers in Adelaide, Newcastle and elsewhere often need export customers, joint development or access to allied programmes because local orders alone cannot sustain every production line. NATO’s debates about industrial capacity therefore matter to Australia beyond immediate procurement costs.

Turning the summit pledge into measurable action

A credible package would pair the 5% goal with annual budgets, named capability priorities and a fair process for handling exceptions. Allies should also make clear what happens if a member misses a milestone, whether through economic shocks or political choice. That turns a broad political promise into an obligation that can be tracked.

The following steps would give the target practical force:

• Set annual spending and procurement milestones through 2035.
• Publish a common definition of eligible defence and resilience spending.
• Prioritise munitions, air defence, logistics, maintenance and industrial surge capacity.
• Use joint procurement to reduce duplication and give suppliers predictable orders.
• Pair additional military funding with transparent assessments of infrastructure and readiness.
• Consult non-NATO partners, including Australia, where systems and supply chains cross regional boundaries.

After the summit, readers should compare the final communiqué with national defence budgets rather than judge success by the headline percentage alone. The practical measures are trained forces, replenished stocks, protected production lines and exercises that show allies can operate together under pressure.

The immediate action is to read the summit’s full declaration, follow the capability deadlines attached to it, and watch NEWINFORMERS’ defence and global coverage as allied capitals turn the announcement into contracts and commitments.