NATO allies are facing a €7 billion ($8.1 billion) funding shortfall in military assistance promised to Ukraine for 2026, raising concerns about Kyiv’s ability to sustain its air defenses and replenish critical weapons supplies as Russia intensifies its bombing campaign ahead of winter.
The funding gap has emerged less than two months before the end of the year, threatening to undermine the alliance’s commitment to provide €70 billion in military assistance to Ukraine in 2026. The shortfall comes at a particularly difficult moment for Kyiv, which is struggling to protect its cities, energy infrastructure and military facilities from increasingly intensive Russian missile and drone attacks.
Three NATO diplomats, who were granted anonymity to discuss internal alliance assessments, confirmed that the alliance is facing a funding deficit of approximately €7 billion. Although the precise sources of the shortfall remain unclear, diplomats warned that the missing funds could affect Ukraine’s ability to purchase essential military equipment and maintain supplies needed to counter Russian attacks.
NATO’s 32 member countries agreed in July to provide €70 billion in military assistance to Ukraine in 2026, followed by an equivalent amount in 2027. However, the latest assessment suggests that allied governments are struggling to translate their political commitments into actual financial contributions and equipment deliveries.
The emerging deficit is expected to feature prominently at an alliance meeting scheduled for November 17, when European capitals will examine options for increasing financial assistance and accelerating transfers of critical weapons to Ukraine.
Although additional funding pledges are still expected, there is a possibility that NATO members will fail to reach their agreed target for 2026, according to the diplomats.
A NATO official, speaking on behalf of the alliance, said member countries continued to provide military assistance and remained committed to supporting Ukraine.
“Allies continue to provide essential military support to Ukraine” to fulfill the commitment, the official said, adding that NATO members were “working to ensure that Ukraine has the support it needs now and into the future.”
The €70 billion target includes bilateral military contributions made by individual NATO members throughout the year, alongside €30 billion expected to come from the European Union’s €90 billion loan package for Ukraine.
However, the growing funding gap highlights the difficulty of coordinating financial commitments across 32 governments at a time when military requirements are increasing and national budgets are under pressure.
For Ukraine, the timing is particularly concerning. Russian forces have continued launching large-scale attacks against Ukrainian cities and critical infrastructure, placing additional pressure on an air defense network already facing shortages of interceptors and other advanced weapons.
More than 40 people were reportedly killed after a bombing struck a school this week, further highlighting the humanitarian consequences of Russia’s continuing air campaign.
Kyiv has repeatedly appealed to NATO governments to increase military assistance, particularly air defense systems and ammunition capable of intercepting ballistic missiles, cruise missiles and attack drones.
During a closed-door meeting with NATO allies on Thursday, Ukraine’s ambassador to NATO, Alyona Getmanchuk, stressed the importance of fulfilling the financial commitment made at the alliance’s Ankara Summit.
According to a statement issued by Ukraine’s NATO mission, Getmanchuk emphasized the need for allies to deliver the promised €70 billion in military assistance during 2026.
“It is essential to mobilise all partners to the fullest extent, accelerate new decisions, and translate previously announced commitments into concrete deliveries of equipment or transfers of funds,” the Ukrainian mission said.
The statement reflects Kyiv’s growing frustration over the gap between international political declarations and the practical delivery of military support.
Ukraine’s immediate priorities include strengthening its air defense capabilities, securing additional ammunition and ensuring that existing weapons systems can remain operational during the winter months.
NATO Secretary-General Mark Rutte has also urged member countries to increase their contributions, warning that Ukraine’s military requirements are becoming more urgent as temperatures fall and Russian attacks continue.
“With winter coming, and with Russia’s aggression unrelenting, allies need to do more, especially in support of air defense,” Rutte said during a recent visit to Tallinn, Estonia.
His remarks underscore the alliance’s concern that Ukraine could face another difficult winter if its air defense network does not receive sufficient supplies.
The funding shortfall also exposes a broader challenge facing NATO’s Ukraine assistance strategy: the growing difficulty of sustaining military support without the United States playing its previous role as the principal provider.
Since US President Donald Trump returned to the White House, Washington has largely stopped providing new military aid through its previous assistance arrangements. The shift has placed a significantly greater financial and operational burden on European governments.
European countries have consequently become Ukraine’s principal supporters, providing weapons, ammunition, financial assistance and other forms of military support.
However, several European capitals are facing increasing fiscal constraints, making it more difficult to maintain the same level of assistance while simultaneously increasing defense spending and addressing domestic economic priorities.
Germany, the Netherlands and Nordic countries have historically provided substantial contributions to Ukraine’s military requirements. Yet these governments have repeatedly called on other NATO members to increase their financial commitments rather than relying disproportionately on a relatively small group of major donors.
One of the NATO diplomats described growing fatigue among the largest contributing countries, which have repeatedly financed military assistance packages.
There is “some fatigue” among the largest donors, who “have repeatedly financed packages,” the diplomat said.
The situation raises questions about whether NATO can establish a more sustainable burden-sharing arrangement among its members, particularly as the war continues without a clear diplomatic settlement.
For European governments, the challenge is no longer simply announcing additional assistance but ensuring that sufficient money is available to purchase weapons, maintain production capacity and deliver military equipment within the required timeframes.
The shortfall is also affecting NATO’s Prioritised Ukraine Requirements List (PURL), a mechanism established to enable European allies and other participating partners to finance the purchase of critical US-made weapons for Ukraine.
Under the arrangement, participating countries provide funding for equipment identified as essential by Kyiv, including advanced air defense systems and other high-priority military supplies that European countries cannot readily produce themselves.
The initiative has become particularly important following the reduction in direct US military assistance, allowing European governments to finance purchases of American-made weapons while drawing on Washington’s defense industrial capacity.
However, two NATO diplomats said the current funding deficit includes approximately $1.9 billion in unpaid contributions for PURL deliveries.
The unpaid amount could complicate the procurement and delivery of weapons already identified as necessary for Ukraine’s defense.
Separately, NATO allies remain uncertain whether they can meet Rutte’s target of raising $15 billion through the PURL initiative during 2026.
One diplomat expressed strong doubts about achieving that objective.
“I do not think that there’s a chance we will meet that,” the diplomat said.
The uncertainty is significant because PURL is intended to provide a more predictable mechanism for purchasing critical US weapons, particularly air defense interceptors that remain essential to protecting Ukrainian cities and infrastructure.
According to Ukraine’s NATO mission, 29 alliance members have now contributed to the initiative.
Since its launch in 2025, PURL has attracted approximately $9 billion in total contributions, according to the two diplomats. Although the amount represents substantial support, it remains below the $15 billion target set for the current year.
The difference between the funds raised and the target illustrates the financial difficulties facing the initiative at a time when Ukraine’s military requirements remain exceptionally high.
The funding dispute comes as Ukraine prepares for another winter of Russian attacks against its energy infrastructure, transport networks and urban centers.
Russia has repeatedly used waves of drones and missiles to overwhelm Ukrainian air defenses, forcing Kyiv to prioritize the protection of major population centers, electricity facilities and strategically important infrastructure.
Air defense systems such as the US-made Patriot remain among Ukraine’s most important capabilities, particularly against advanced ballistic missiles. However, their effectiveness depends on a reliable supply of expensive interceptors and continued maintenance support.
European governments have sought to strengthen Ukraine’s defensive capabilities through equipment transfers, financial contributions and purchases from the US defense industry.
Nevertheless, the availability of weapons is increasingly linked to the willingness of allied governments to finance procurement programs and maintain long-term commitments.
The November 17 NATO meeting will therefore be an important test of whether European capitals can overcome funding disagreements and provide additional resources before the end of the year.
For Kyiv, the immediate concern is ensuring that previously announced commitments result in actual deliveries rather than remaining political promises.
The €7 billion gap also raises broader questions about NATO’s ability to maintain a coordinated military assistance strategy as the United States reduces its direct role and European governments assume greater responsibility.
While the alliance continues to reaffirm its commitment to Ukraine, the growing financial deficit suggests that sustaining military support will require more than declarations of solidarity.
