Chapter 1
Since Russia's 2022 invasion the NATO-Ukraine relationship has been…
Since Russia's 2022 invasion the NATO-Ukraine relationship has been rebuilt around everything except membership. The 2023 Vilnius summit dropped the Membership Action Plan requirement and created the NATO-Ukraine Council; the 2024 Washington summit called Ukraine's path to membership 'irreversible' and established JATEC in Poland; NSATU took over the coordination of military aid from Wiesbaden; and twenty-eight bilateral security agreements were signed in place of an accession date. Then the language stopped. The 2025 Hague declaration tied Ukraine's aid to allied defence spending without repeating the membership phrase, and the 2026 Ankara summit pledged €70 billion for the year while saying nothing about membership at all. In December 2025 Washington offered 'Article 5-like' guarantees explicitly instead of accession, and in July 2026 it opened a review of its European posture intended, in its own words, to move the alliance 'irreversibly' toward Europe taking primary responsibility for its conventional defence — the same adverb, transferred to a different object. The transfer is further along on paper than in industry: Europe now funds the larger share of Ukraine's war, but buys much of what it sends from American manufacturers and American stockpiles, and has no near-term substitute for systems like Patriot.
Chapter 2
The machinery built instead of membership is meanwhile being made…
The machinery built instead of membership is meanwhile being made permanent. On 22 July 2026 the North Atlantic Council wrote NSATU and JATEC into NATO's 2027-2031 common funding baseline, moving both from annual pledging drives onto a five-year horizon, and raised total common funding to up to €6.5 billion. Individual allies keep deepening their own commitments in parallel: the United Kingdom, the first signatory in January 2024, has committed £25 billion and £3 billion a year until 2030-31, and a new government took office in July 2026 promising to honour every existing pledge.
Chapter 3
What is changing fastest
What is changing fastest, though, is not the relationship but the geography of the war. Romanian pilots shot down three Russian drones over their own territory in three days in late July 2026, watched a fourth cross unengaged, and Bucharest expelled a member of Russia's mission and recalled its ambassador from Moscow; six days later a Russian cruise missile flew about ninety kilometres into Poland and exploded in a field. On 12 August 2026 the alliance's ambassadors met in the North Atlantic Council and issued a collective statement condemning Russia for the violations, reaffirming solidarity with the allies affected, and pointing to air and missile defences strengthened from the Baltic to the Black Sea. Within four days allied jets had fired at both ends of that line — over Latvia and over Romania — and in neither case was the trigger pulled by the country whose airspace had been breached, but by a visiting ally flying NATO's rotational air-policing mission. Yet no member has requested Article 4, the clause under which any ally may compel the others into consultation, since September 2025. In September 2026 the pattern reached a core Western member: Germany formally blamed Russia for a foiled drone attack on the Leipzig airport that ships weapons to Ukraine, summoned the ambassador and closed a consulate — and, like the frontline states before it, declined to invoke Article 4, informing its partners of its response instead. In October the war reached the sea lanes as well: drones sank two merchant ships and set a third alight in the Black Sea economic zones of Romania and Bulgaria, sailors died, neither government named an attacker, and Bulgaria’s president called Article 4 consultations unproductive. So the question this relationship now turns on is sharpening rather than settled: the war reaching allied territory has changed what the alliance does in the air, and what it says afterwards, more than it has yet changed what any member obliges it to do.
And now
The war keeps reaching NATO’s eastern members, and the alliance keeps answering with surveillance and police work rather than Article 4.
Romania’s prosecutors and intelligence service said on October 26 that a Russian network was behind a September fire beside a state arms plant in Brașov. Two suspects are under arrest, reportedly caught preparing similar attacks in Germany; the Russian link itself has not been shown publicly. At sea, a drone sank a cargo ship just outside Romania’s territorial waters on October 23, killing one sailor. Romania’s president called it a consequence of Russia’s war but did not say who launched it, and Bucharest is looking at faster maritime surveillance and counter-drone defences. On October 28 the defence ministers of Bulgaria, Romania and Turkey jointly condemned the ship attacks, addressing “all parties” rather than Moscow. NATO’s register still shows no Article 4 request since September 2025.
On Ukraine itself, NATO’s innovation accelerator DIANA signed its first agreement with any partner country, a memorandum with Kyiv on joint development and testing. Like the procurement-agency deal two weeks earlier, it widens Ukraine’s access to alliance machinery without touching membership.
Where it stands today →