How Belgium promised its entire war sky to Ukraine

Introduction: the story of a promise that grew over time

From a handful of jets to an entire fleet

There is something almost cinematic about the way Belgium built its promise to Ukraine: what began in October 2023 as a vague announcement of an unspecified number of F-16s turned, three years later, into a commitment to hand over its entire fleet of 53 fighter jets by 2029.

Belgian Defense Minister Theo Francken confirmed a staggered delivery schedule according to Aerospace Global News: seven F-16s in 2026, five in 2027, fourteen in 2028 and twenty-seven in 2029, an increasing pace that peaks precisely as Brussels expects to receive its first American F-35s as replacements.

A country learning to keep its word

This is not just the story of a fighter jet delivery schedule: it is also the story of a small European country that long dragged its feet before fully committing to military support for Ukraine, unlike the Netherlands and Denmark, which had already delivered their first aircraft by the summer of 2024.

According to Kyiv Independent, the Netherlands completed delivery of its promised 24 F-16s as early as May 26, 2025, while Denmark delivered most of its promised 19 aircraft before the end of that same year, leaving Belgium clearly trailing in this collective race to arm Ukraine's air force.

The starting point: a timid promise in 2023

Thirty jets, a decision slow to materialize

According to Wikipedia and the archives of the F-16 training coalition, Belgium had initially announced, in October 2023, that it would supply an unspecified number of F-16 fighters, before confirming in May 2024 a commitment of 30 aircraft as part of a military aid package valued at €977 million.

This initial announcement projected full delivery by 2028, but delays quickly piled up, largely due to Belgium's dependence on the arrival of its own replacement aircraft, the Lockheed Martin F-35 Lightning II, which was itself delayed in its delivery schedule.

The delay that fueled criticism

According to Militarnyi, Belgian participation was initially limited to training and logistical support before the government decided to hand over 30 complete fighter jets, a transfer originally planned for 2025-2026 but which had not resulted in any concrete delivery by June 2026.

This slowness earned Brussels repeated criticism from Western military observers, who pointed to the striking contrast between Belgium's ambitious announcements and the persistent absence of aircraft actually delivered on Ukrainian soil, even as Kyiv urgently called for stronger air cover against Russian strikes.

The May 2026 turning point: a dramatic upward revision

Le Vif reveals a far more ambitious plan

The decisive turning point came in May 2026, when the Belgian newspaper Le Vif, cited by several outlets including Aerospace Global News and MiGFlug, revealed that Belgium now planned to hand over its entire fleet, that is 53 F-16s in total, far beyond the initial commitment of 30 aircraft.

This revision was confirmed by Minister Theo Francken's office, which laid out a precise timeline: seven aircraft in 2026, five in 2027, fourteen in 2028 and the remainder, twenty-seven aircraft, delivered in 2029, the year Belgian F-35s are finally expected to reach full operational capability.

A direct dependence on the F-35 timeline

According to UNN, delivery of the fighter jets will depend directly on the arrival of the American F-35s meant to replace Belgium's aging F-16 fleet, which explains why the majority of the aircraft, twenty-seven of fifty-three, will only be transferred at the very end of the program, in 2029.

MiGFlug reports that government officials in Brussels have privately acknowledged that the original 2028 target for full transfer is no longer realistic, and that even the new 2029 timeline is still described as "indicative" by Belgian authorities themselves.

June 18, 2026: official confirmation of the first seven aircraft

Francken details the exact breakdown

On June 18, 2026, according to Ukrainska Pravda, Minister Theo Francken officially confirmed that seven F-16s would be sent to Ukraine this year, specifying that four aircraft would serve as spare parts donors while three would actually be operational in Ukrainian skies to defend the country against Russian aggression.

"We will help them by delivering seven F-16s this year," Francken said, according to the quote reported by Ukrainska Pravda, adding that four of them would serve as parts donors for other aircraft already in Ukrainian service, while three would actually fly to defend the territory.

An acceleration that contrasts with previous years

This announcement marks a striking contrast with previous years of relative inaction: Brussels had originally planned to deliver these same aircraft between 2025 and 2026, but no delivery had been announced before this June confirmation, leaving persistent doubt about Belgium's reliability when it comes to international military commitments.

Francken also indicated he would propose to the Belgian federal government sending "all our F-16s to Ukraine in the coming years," a statement since confirmed by the detailed timeline covering fifty-three aircraft in total.

The bigger picture: a Western F-16 coalition

Four countries, eighty-five jets promised

The Belgian contribution fits into a broader collective effort that also includes the Netherlands with 24 aircraft, Denmark with 19 fighters, and Norway with at least six additional F-16s, bringing the total Western coalition to roughly 85 aircraft meant to strengthen Ukrainian air defense.

According to The Aviationist, Ukraine received its very first batch of Western F-16s as early as July 2024, a month after a joint statement from the United States, the Netherlands and Denmark confirming the aircraft transfer was underway and that they would be flying over Ukrainian skies by the summer of that same year.

Belgium, now the largest individual donor

With this revised commitment of 53 aircraft, Belgium becomes the largest individual donor of F-16s to Ukraine, far surpassing the combined Dutch and Danish contributions, a dramatic reversal of position for a country long seen as reluctant within the Western alliance's military support effort.

This shift illustrates a broader dynamic observed across several European capitals: pressure exerted by allies who have already delivered their aircraft, combined with the evolving military situation on Ukrainian soil, gradually pushes hesitant countries to revise their commitments upward rather than downward.

The operational challenges: training pilots, maintaining planes

Aircraft already used for training

According to the Brussels Times, four of the seven planes set for delivery in 2026 are already being used to train Ukrainian maintenance technicians at Florennes air base, these aircraft no longer being flightworthy but remaining valuable for passing on the technical skills needed to maintain the fleet.

This pragmatic approach reflects an essential operational reality: owning fighter jets is not enough if Ukraine does not have trained pilots and qualified technicians to keep them flightworthy, a logistical challenge that accompanies every Western donation of sophisticated military equipment.

The human challenge behind every delivered aircraft

According to RFE/RL, the F-16 transfer process has always been conditioned on adequate training of Ukrainian pilots, a requirement set from the outset by Denmark and the Netherlands, which invested months in intensive training programs in Romania and elsewhere in Europe even before the first aircraft was delivered.

This human dimension of the F-16 program is a reminder that Belgium's promise, however impressive on paper with its fifty-three announced aircraft, will only translate into real military capability at the pace Ukraine can train enough pilots and mechanics to fully operate this growing fleet.

The political dimension: NATO and Belgium's obligations

A commitment bound by Alliance obligations

According to Militarnyi, delivery dates and quantities remain subject to change, since they must also account for the operational requirements of the Belgian air force and the country's obligations as a NATO member, a reminder that even the most generous promises remain constrained by national military realities.

This contractual caution illustrates the ongoing tension between moral commitment to Ukraine and Belgium's need to maintain its own air defense capabilities during the transition period toward the F-35s, a delicate equation Brussels is trying to solve without compromising either objective.

A decision still awaiting final approval

According to the Brussels Times, the Belgian federal government has not yet made a formal decision regarding the twenty-three additional aircraft beyond the thirty initially promised, meaning the commitment to fifty-three planes currently remains an intention rather than a legally binding contract.

Such a decision is not expected before 2028, when the federal government will need to give formal approval for military aid in 2029 and 2030, a political timeline that leaves legitimate uncertainty over the full realization of this historic promise.

What this means for the air war in Ukraine

A crucial boost against Russian air superiority

The gradual arrival of dozens of additional F-16s represents a crucial strategic boost for Ukraine, which continues to face Russian numerical air superiority and near-daily missile and drone strikes against its civilian and military infrastructure.

Every additional aircraft, even one used only as a source of spare parts, helps keep an already existing fleet operational, a fleet that has proven its value intercepting Russian cruise missiles and drones over Ukrainian territory since the first units arrived in 2024.

A symbol of Western resolve against Moscow

Beyond its immediate military value, this Belgian promise is also a powerful political symbol: it shows that despite occasional war fatigue seen in some Western capitals, fundamental solidarity with Ukraine keeps strengthening rather than eroding as the conflict drags on.

This gradual strengthening of Western military aid, embodied by the Belgian example, sends a clear message to Vladimir Putin: time is not necessarily on his side, and Ukrainian military capabilities will keep growing as long as the Western coalition maintains its commitment.

Regional comparisons: Belgium versus its European neighbors

A striking catch-up after years of delay

The contrast between Belgium's current position and its position just two years ago is striking: while Belgium was criticized for its slowness in 2024, it now finds itself leading the largest individual F-16 commitment among all Western donor countries.

This rapid catch-up also illustrates an interesting political dynamic within the current Belgian coalition, where Minister Theo Francken, known for his Flemish nationalist positions on other issues, has proven to be one of the most active advocates for military aid to Ukraine within the federal government.

A potential model for other hesitant countries

This Belgian transformation could serve as an example for other European countries still hesitant to fully commit to military support for Ukraine, demonstrating that a major shift in political posture remains possible even after years of foot-dragging and unfulfilled promises.

If other European capitals followed this Belgian example of revising commitments upward rather than downward, Ukrainian air defense capability could undergo a significant qualitative transformation in the years ahead, durably strengthening Kyiv's position against continued Russian aggression.

The gray areas that remain in this story

A timeline still described as indicative

Despite the legitimate enthusiasm this announcement generates, it is worth remembering that the fifty-three-aircraft timeline remains officially described as "indicative" by Belgian authorities themselves, a term that leaves considerable room for future adjustments.

The recent history of this file, marked by years of repeated delays between the initial 2023 announcement and the first concrete delivery in 2026, calls for methodological caution in interpreting these new commitments, however encouraging they may look on paper.

The persistent dependence on the F-35 program

The direct link established between the F-16 delivery schedule to Ukraine and the arrival of the American F-35s destined for Belgium constitutes a structural vulnerability in this promise: any delay in the F-35 program, a scenario far from unlikely given the history of this complex program, would directly affect the Ukrainian timeline.

This interdependence is a reminder that even the most generous Western military aid promises often remain hostage to industrial and logistical factors largely beyond the direct control of donor governments, a reality Kyiv must factor into its own long-term strategic planning.

The human impact: what these planes mean on the ground

Lives protected through stronger air cover

Behind the numbers and delivery schedules lies an essential human reality: every additional F-16 operational in Ukrainian skies represents an increased capacity to intercept the Russian cruise missiles and drones that threaten Ukrainian cities and civilian infrastructure every day.

Ukrainian pilots already operating these Western aircraft have shown, since the first units arrived in 2024, their ability to quickly integrate this complex technology into their defense operations, potentially saving countless civilian lives through successful interceptions of Russian projectiles.

A promise that must now become action

The real test of this Belgian promise will not lie in government announcements or press articles, but in the concrete reality of planes actually landing on Ukrainian tarmac in the coming years, in line with the schedule announced by Minister Francken.

It is this translation of words into concrete action that Western military observers, and more importantly, Ukrainian soldiers and civilians whose safety directly depends on the reliability of these international commitments, will be watching closely.

The geopolitical lessons of this Belgian story

Ukrainian persistence eventually pays off

This Belgian story illustrates a broader geopolitical lesson: Ukrainian diplomatic persistence, combined with constant pressure from already-committed allies like the Netherlands and Denmark, eventually produces concrete results even with the most initially hesitant partners.

This dynamic confirms that Western support for Ukraine, though sometimes frustrating in its slowness and initial hesitations, keeps generally moving in the right direction, strengthening Kyiv's ability to resist Russian aggression year after year.

A precedent for the future of Western solidarity

This Belgian precedent could prove decisive for the future of Western solidarity with Ukraine, showing that an initially reluctant country can, with time and the right political pressure, become one of the most significant contributors to the collective defense effort against Russia.

As the war enters its fifth year, every example of this kind reinforces the belief that the West, despite its internal divisions and occasional hesitations, retains the collective capacity to sustain Ukraine over the long haul until a just and lasting peace is achieved.

The Russian reaction: between threats and minimization

Moscow tries to downplay the impact of the deliveries

Faced with this Belgian announcement, Kremlin spokespeople adopted their usual posture of minimization, publicly claiming that additional F-16 deliveries would not fundamentally change the military balance on the ground, while simultaneously continuing their strikes against Ukrainian air infrastructure.

This rhetoric nonetheless contradicts the constant efforts made by the Russian air force to precisely target Ukrainian air bases and air defense systems, a contradiction that reveals just how seriously Moscow actually takes the buildup of the Western fighter fleet delivered to Kyiv.

A predictable rhetorical escalation from Moscow

Russian state media also multiplied warnings against what they call a "dangerous Western escalation," rhetoric already heard at every previous stage of Western military aid to Ukraine, from tanks to long-range missiles, without any of these warnings ever materializing into direct retaliation against NATO.

This continuity in Russian rhetoric, despite the steady escalation of Western aid since the invasion began in 2022, once again confirms that the red lines announced by Moscow systematically shift as soon as the West shows its determination to cross them.

The industrial dimension: a maintenance market taking shape

Belgium as a long-term parts supplier

Beyond the fifty-three promised aircraft, Belgium could also become a key supplier of spare parts and technical expertise for Ukraine's entire F-16 fleet, an industrial role that goes beyond simply delivering planes and extends into a long-term maintenance partnership between the two countries.

This industrial dimension becomes especially clear when considering that four of the first seven aircraft delivered in 2026 will serve exclusively as parts donors, a model that could be repeated for part of future deliveries depending on the actual operational condition of Belgium's aging aircraft.

Technical know-how that benefits Ukraine

The training of Ukrainian technicians at Florennes base also illustrates a transfer of know-how that goes beyond the simple material dimension of plane deliveries, creating local Ukrainian expertise that will benefit the entire Western fighter fleet already deployed on the territory.

This transfer of technical skills could prove just as valuable in the long run as the aircraft themselves, strengthening Ukrainian operational autonomy in a war of attrition that demands constant, reliable maintenance capacity, independent of Western diplomatic uncertainties.

Conclusion: a story still unfinished

A story that continues through 2029

This story of Belgium's promise to Ukraine remains, by nature, an unfinished one: the next three years will determine whether Brussels truly honors its commitment of fifty-three F-16s, or whether this ambitious timeline joins the long list of partially kept Western promises to Kyiv.

What remains certain is that Belgium's trajectory, from initial skepticism to today's massive commitment, illustrates an encouraging dynamic within the Western coalition supporting Ukraine militarily, a dynamic that must now materialize plane by plane on Ukrainian tarmac.

What history will remember from this chapter

Whatever the final outcome of this delivery schedule, history will remember that Belgium, long seen as a secondary player in Western military support for Ukraine, ultimately committed to handing over its entire fighter fleet to help a European democracy defend itself against unjustifiable Russian imperial aggression.

It is this transformation, however imperfect and gradual, that deserves to be told and closely followed in the months and years ahead, as every delivered aircraft brings Ukraine a little closer to the air security it desperately needs.

By Maxime Marquette, columnist

Columnist's transparency note

My limits and my acknowledged biases

I write this narrative with an acknowledged bias in favor of Western military support for Ukraine, which inevitably colors my positive reading of Belgium's evolving position. I am not a specialist in military procurement or the inner workings of the Belgian federal government, and I rely primarily on reporting already published by defense-focused outlets.

I also recognize that publicly announced military delivery timelines are often revised, and that my confidence in the full realization of this Belgian promise of fifty-three aircraft remains a cautious estimate rather than an absolute certainty.

What I don't know and my method

I cannot guarantee that Belgium will fully honor this delivery schedule through 2029, nor can I predict with certainty the precise impact of these additional aircraft on the air balance between Ukraine and Russia in the years ahead.

My method relies on cross-referencing multiple specialized defense and military aviation journalism sources, including Belgian, Ukrainian and international outlets that have covered the full timeline of this story since its origin in 2023.

Sources

Primary sources

Belgium outlines plans to deliver entire F-16 fleet to Ukraine by 2029 — Aerospace Global News

Belgium to transfer seven F-16 fighter jets to Ukraine and preparing more — Ukrainska Pravda, June 18, 2026

Belgium plans to donate its entire fleet of F-16s to Ukraine — Brussels Times, June 18, 2026

Secondary sources

Belgium sends F-16 fighter jets to Ukraine — RBC-Ukraine

Belgium to Send Entire F-16 Fleet to Ukraine — 53 Jets — MiGFlug, May 12, 2026

Belgium Plans to Transfer All 53 F-16 Fighter Jets to Ukraine by the End of 2029 — Militarnyi, May 9, 2026

Netherlands to send last of pledged 24 F-16s to Ukraine on May 26 — Kyiv Independent, May 26, 2025