Less than 50% of the F-16 fighter jets delivered to Ukraine may be operational, Defense Express reports, citing a Wall Street Journal (WSJ) editorial published on 29 September. On the same day, Ukrainian President Volodymyr Zelenskyy said that Belgium would deliver three F-16 fighter jets this year.

F-16s are used extensively to intercept Russian cruise missiles and drones. As the number of Russian attacks has increased, these aircraft have become particularly important for Ukraine. However, the jets Ukraine receives are old, and keeping them flying takes regular maintenance, extra work, and hard-to-find parts.

Routine inspections are taking as long as 40 weeks in Belgium, retired US Navy Rear Admiral Mark Montgomery told the WSJ.

The maintenance process for these aircraft for Ukraine is lengthy

A likely reason for the problem is the lengthy maintenance process handled by Belgian company Sabena Aerospace Engineering, according to the WSJ, whose questions the company declined to answer. This process, according to Defense Express's estimates, takes 6–20 times longer than maintenance in the United States, which usually takes between 2 and 6 weeks. Ukraine uses the services of the Belgian company, meaning its F-16s are not being serviced quickly enough.

Delivering three additional fighter jets will not significantly help the Ukrainian military until the issue with aircraft maintenance times is resolved, Defense Express notes. The lengthy turnaround may be caused by a large maintenance backlog at the company, limited capacity, or logistical constraints, and older jets may need extra work and scarcer parts.

The delivery is part of an earlier commitment. Belgium plans to provide seven fighter jets this year: three for operational use and four for spare parts, Belgian Defense Minister Theo Francken said in June.

"I'll propose to the government to send all our F-16s to Ukraine in the coming years. It depends on having the F-35s in place because, of course, we have DCA [dual-capable aircraft] capacity. We have our role in the nuclear doctrine of NATO," Francken said.

Belgium has pledged its entire F-16 fleet of 53 aircraft as F-35s replace them, according to Defense Express.

F-16s in Ukraine have already shot down several thousand Russian aerial targets

F-16s operated by Ukrainian pilots have shot down more than 3,150 aerial targets. These include 666 cruise missiles and around 2,500 drones of various types. The aircraft have also carried out more than 650 strikes against Russian ground targets, Lieutenant General Anatolii Kryvonozhko, Commander of the Ukrainian Air Force, said during a meeting between a Ukrainian Air Force delegation and representatives of Lockheed Martin on 29 September.

At the meeting, Conor McGuire, Lockheed Martin's head of F-16 capability development, highly praised the combat use and operation of F-16s by Ukrainian pilots and the entire ground aviation personnel. He also expressed his intention to help Ukrainians enhance the capabilities of the existing platform, the statement said.

France delivered additional MICA air-to-air missiles and 30mm cannon ammunition for Ukraine's Mirage 2000 fighter jets, Militarnyi reported, citing France's Armed Forces Ministry.

Delivering an aircraft is one step, keeping it armed is another. France's weapons resupply reflects a shift from one-off hardware transfers to sustained combat support as Russia's aerial campaign against Ukrainian cities grinds on.

What MICA does

The MICA, developed by MBDA, comes in two versions: radar-guided (MICA RF) and infrared (MICA IR). It weighs about 112 kg, flies at Mach 4.9—nearly five times the speed of sound—and can engage targets 60 to 80 km away.

Ukraine's Mirages have also carried older Magic 2 missiles limited to roughly 20 km. MICAs were reportedly included with the original donation, but the supply may have been limited, which would explain why the Magic 2s stayed in use. MICA triples to quadruples that engagement window, letting pilots intercept cruise missiles far earlier in their flight path. The fresh delivery keeps Ukraine's small fleet supplied with the missiles that make these longer-range interceptions possible.

Explore further

Ukraine is running short of its best missiles for hunting Russia’s jet drones. Now MiG-29s are firing 1970s weapons

Cheap shells for cheap drones

The 30mm ammunition feeds the Mirage's two built-in DEFA 554 cannons, which fire at a selectable rate of 1,200 or 1,800 rounds per minute. A pilot who uses the gun on a Shahed drone saves a MICA for a target that actually needs one.

Ukraine's F-16 operations follow a similar logic: pilots use their 20mm Vulcan cannons alongside AIM-9 and AIM-120 missiles, though Zelenskyy called the missile option expensive—used when nothing else can reach a jet drone, because "a human life is more important."

A Ukrainian Mirage 2000 shot down a Russian Kh-101 cruise missile during its very first combat mission, on 7 March 2025. France has delivered about a dozen modified Mirage 2000-5F jets since February 2025, and the fleet is still growing.

A lieutenant colonel flying a U.S.-made F-16 fighter jet was killed during the overnight aerial strike while on duty, the Air Force said on June 29.

Russia launched a "massive" missile and drone strike across Ukraine early on June 29, unleashing 537 aerial targets, including 477 drones and 60 missiles, according to the Air Force..

Maksym Ustymenko, born in 1993, was killed after shooting down seven aerial targets, the Air Force said in a statement. The Air Force added that his aircraft was damaged while he was trying to shoot down the last one, losing altitude and crashing.

"Maksym Ustymenko did his best to take the plane away from the settlement, but did not have time to eject," the Air Force said on Telegram, honoring that he died "like a hero."

"The work of Ukrainian pilots is extremely dangerous and risky, both when striking enemy ground targets and repelling air attacks," the Air Force added, saying that the F-16 pilots destroy dozens of Shahed-type drones.

In his evening address, President Volodymyr Zelensky posthumously awarded Ustymenko with the Hero of Ukraine award.

"Today, he was killed defending our skies and our people from yet another massive Russian attack... It is painful to lose people like him," Zelensky said in offering condolence to loved ones.

Russia has intensified its aerial campaign on Kyiv and other cities over the past month. Zelensky said that Russia has launched over 2,700, or roughly 9.5%, of the total number of Shahed-type drones deployed during the entire full-scale war in June alone.

Though well protected with Western air defense systems compared to other cities, Kyiv has also faced a number of deadly attacks in June, with the June 17 missile and drone strike on Kyiv killing 30.  

The Air Force said that Ukraine had to use "all available means" to repel the Russian aerial attack overnight on June 29, including elite F-16 jets.

Ukraine received its first batch of F-16 jets in the summer of 2024, but it has not revealed many details about how and where they are used in operations since they are a high-priority target for Moscow. Their pilots have received months of training abroad.

Ukraine war latest: US signals more Patriot missiles for Kyiv after Zelensky-Trump talks at NATO summit

Key developments on June 25: * Zelensky, Trump hold talks on NATO summit sidelines * ‘Something unknown’ hits key Russian drone facility in Taganrog, Ukrainian official says * Russia has launched over 28,000 Shahed drones at Ukraine since 2022, with nearly 10% fired in June alone, Zelensky says * Donetsk Oblast city “on

The Kyiv IndependentThe Kyiv Independent news desk