NATO leaders gathered in Ankara on July 7, 2026 for a summit centered on a single demand: proof. Secretary General Mark Rutte spent his pre-summit press conference pressing allies to deliver "clear, concrete and credible plans" to reach the alliance's defence-spending targets, bridging the gap between what countries promised last year and what their 2026 budgets actually show.

The targets originate from NATO's 2025 summit in The Hague, where European members and Canada committed to spending 5% of their GDP on defence — broken down as 3.5% on core military capability and 1.5% on dual-use infrastructure like roads, bridges, and ports that would serve military operations during a crisis. One year later, Ankara became the testing ground for whether those promises would translate into concrete action. Rutte was explicit: pledges now needed national timetables attached to them, not just political agreement.

The pressure originates primarily from Washington. Rutte quoted Donald Trump directly: "President Trump fully expects that all allies will step up immediately and get on the path to 5% and do it with urgency." That framing built on a June 25 meeting in the Oval Office where Rutte presented Trump with data on non-US NATO defence spending, labelled "the Trump trillion" — signifying the additional spending that Rutte credits to Trump's public pressure campaign. The messaging cuts both ways: on the Friday before the summit, Trump posted a comparison of member states' defence budgets on Truth Social, listing the US figure at $999 million alongside smaller European figures — a visual reminder of Washington's long-standing complaint about burden-sharing.

The spending numbers show real upward movement. European NATO members and Canada increased defence spending by $90 billion in real terms in 2025 compared to 2024, according to reporting on the summit. That increase carries a real cost: the push is already straining national budgets across the continent. This tension — the gap between political commitment and what governments can actually afford — is likely to define the closed-door negotiations even as public statements remain optimistic.

Ukraine funding and the summit's agenda beyond spending

Allies are expected to agree on a €70 billion (£60 billion) package of military aid to Ukraine covering 2026 and 2027. This multi-year commitment offers Kyiv more predictability than the annual funding scrambles of previous years, though the summit communiqué will need to spell out how the money flows and how countries will share the burden — details that remained unclear before the summit began.

Rutte has also signalled that Ankara will announce tens of billions of dollars in new defence contracts. In remarks previewing the summit on June 25, Rutte laid out these expected deliverables. The unusually heavy advance messaging during the run-up suggests an effort to shape expectations before ministers and heads of state actually convene.

A structural question hangs over the alliance's future operations: whether NATO should continue holding annual summits at all. In April 2026, Reuters reported that the alliance was exploring whether to end the practice, a discussion that reportedly emerged after tensions with the Trump administration over past gatherings. The fact that this question is even being discussed signals how NATO's internal operation has shifted since Trump's return to office. Summits that once served as ceremonial reaffirmations of unity have become forums for hard negotiation over spending figures and burden-sharing metrics, increasingly conducted in plain view rather than behind closed doors.

The real measure of Ankara's success is not whether allies restate the 5%-by-2035 commitment — they almost certainly will — but whether the summit produces verifiable national spending plans that survive the 2027 budget cycle. Rutte's insistence on plans that are "concrete and credible" rather than merely "clear" hints that he expects allies to arrive with good intentions rather than actual numbers. Whether Ankara closes that gap or defers it to the next summit — annual or not — will shape how the gathering is judged.