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.

Ukraine is stitching together a layered answer to Russia's faster, jet-powered Shahed drones, leaning on electronic jamming, fighter jets, and a new class of homegrown interceptors, RBC-Ukraine reported. Each tool has limits, and the new interceptors still bring down only the occasional jet drone. The bottleneck now is money and factory output, not ideas.

Russia is pouring faster jet-powered drones into the air war as winter nears, a campaign Western analysts say is meant to wear Ukraine's defenses down—and holding those skies now turns on which side can keep out-producing the other's cheap weapons.

Fighter jets help, but they run on imported rounds

Electronic jamming can work against some of the drones, and Ukraine is also sending combat aircraft up after them. But aviation has a catch: the jets need air-to-air missiles and cannon rounds, and for the F-16 and Mirage those are imported and not always in stock. Flying over Kyiv adds danger to the civilians below and to the pilots, so Ukraine would rather catch the drones out on the approaches.

New interceptors are landing hits—just not enough

The newest piece is a wave of Ukrainian interceptor drones built to chase the jet versions, which fly three times faster than the propeller Shaheds. Ukrainian crews have been downing the jet Gerans in a recent run: on 19 September, presidential adviser Serhii Beskrestnov, known as Flash, confirmed one Geran-5 shot down, and in late September, operators of the National Guard's Separate Artillery Brigade brought down a Geran-4 with the Bullet interceptor made by General Cherry, the first Geran-4 that drone has downed, Ukraine's National Association of Defense Industries said. Ukrainian President Volodymyr Zelenskyy said several prototypes have proven themselves in combat.

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Russia is now wiring its attack drones into one network in flight, so a single drone can scout, strike, and relay for the rest

Across all methods, Ukraine now intercepts about 57% of the jet drones Russia launches, Zelenskyy said on 28 September—a rate that has climbed but still trails the 90%-plus it manages against slower Shaheds. Kills by the new interceptors specifically remain isolated. In August, Air Force spokesperson Yurii Ihnat said jet drones can make up as much as two-thirds of the drones in some raids—though not every time. One promising route is reworking Ukraine's own long-range strike drones into interceptors. Kyiv is in talks with partners over the money; on 28 September, Ukraine's Defense Minister Yevhenii Khmara asked the EU to help finance the interceptors so enough reach the front quickly.

Hitting the launch sites and jamming the controls

Ukrainian forces strike the Russian airfields the jet drones launch from, RBC-Ukraine's sources said, though the raids have not forced Russia to abandon the attacks. On 20 August, military intelligence hit drone storage and launch sites at Primorsko-Akhtarsk, one of the launch bases RBC names, and at occupied Donetsk airfield. Ukraine also keeps going after the Belarusian relay towers Russia strings into a mesh network to steer the drones in, RBC's sources 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.

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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.

Poland will provide another aid package to Ukraine, which will include, among other things, “what Ukraine needs right now,” Deputy Minister of National Defense Stanisław Wziątek said, reports Polskie Radio. He said the package would include missiles for F-16 fighter jets, which the Ukrainian military uses to shoot down Russian drones.

Ukraine is critically short of missiles for F-16 fighter jets, which shoot down Russian UAVs. Recently, it was reported that pilots sometimes took off without missiles, using only the aircraft’s built-in M61A1 Vulcan cannon, which is dangerous for civilians. Poland’s newly promised aid will include these missiles for Ukraine.

Among other things, Poland will provide aviation equipment, the report said. Media reports added that the aid package may be worth around €50 million.

Ammunition for F-16s and possible aviation equipment

“Our aid is in the process of being prepared. Everything will happen in a moment. I cannot say what it contains, I can only say that it is what Ukraine needs right now. This includes basic ammunition. These are the ones mounted on F-16s to shoot down Russian drones,” Wziątek said.

AIM-9 and AIM-120 are air-to-air missiles that the Ukrainian Armed Forces use with F-16s to fight Russian aviation, Militarnyi says. The outlet adds that last year Ukrainian F-16s were spotted with APKWS II missiles, which are effective against drones. As for the aforementioned aviation equipment, Poland may provide decommissioned MiG-29 fighter jets or drones, the media outlet suggests.

The MiG-29 does not use the same scarce stocks of AIM-9 and AIM-120 missiles.

Missile shortage is not new

In July 2025, America abruptly suspended arms supplies to Ukraine, affecting some types of weapons. Among them were more than 90 US-made AIM air-to-air missiles that were in Poland and on their way to Ukraine, but were withdrawn by the US, according to a Wall Street Journal article. Since then, Ukraine has received Western aid for air defense systems, but missiles have remained among the items in short supply.

Ukraine faced a severe shortage of F-16 missiles from late November to mid-December, according to Reuters. One source said Ukraine had "nothing to put on its jets for almost a month."

While F-16s likely rank first by number in the Ukrainian Armed Forces, the Soviet-made MiG-29 ranks second, Euromaidan Press. Ukraine had enough R-73 missiles for this fighter, but when the Ukrainian Armed Forces also began using them for ground-based launchers after 9M33 missiles for Soviet Osa air defense systems ran out, the rate of consumption increased sharply.

Ukrainian forces were observed resuming the use of older missiles that had been considered obsolete. There is an alternative: using the fighter’s cannon. However, this practice is dangerous.

Editor's note: This is a developing story and is being updated.

A Russian SU-25 fighter jet reportedly crashed over Donetsk Oblast on June 13, Russian social media channels reported.

Videos posted on social media of the purported crash by bloggers with close ties to the Russian Air Force appear to show the plane crashing into a field after closely being followed by another fighter jet. The circumstances of the crash remain unclear as rumours swirl of Russian 'friendly fire' as a potential cause of the crash.

The Kyiv Independent cannot independently verify the crash or the details surrounding it. Neither the Ukrainian nor Russian military have commented on the reported crash.

The Su-25, a Soviet-designed close-air support aircraft developed by Sukhoi in the late 1970s, is built for battlefield survivability. It features heavy armor and can withstand enemy fire.

The aircraft has been widely used in various conflicts, including in Afghanistan, Chechnya, and, more recently, in Ukraine, where both Russian and Ukrainian forces operate the platform.

Ukraine has downed multiple Russian Su-25s throughout the war. On Feb. 8, Ukraine's military reported shooting down a Russian Su-25 near the town of Toretsk in Donetsk Oblast.

In another instance, Russia's Defense Ministry said on on March 24 that Russian Su-25 attack aircraft crashed during a routine training flight in Primorye Krai in Russia's Far East.

The incident comes less than two week following Ukraine's 'Operation Spiderweb' in which Ukrainian drones smuggled deep inside Russia and hidden inside trucks struck as many as 41 Russian heavy bombers at four airfields across the country.

Ukraine war latest: Ukrainian MiG-29 strikes Russian drone hub, ammo depot in Zaporizhzhia direction, releases video

Key developments on June 13: * Ukrainian MiG-29 strikes Russian drone hub, ammo depot in Zaporizhzhia direction, releases video * Ukrainian military denies NYT claims about Russian presence in Dnipropetrovsk Oblast * Russia preparing strategic reserves for conflicts beyond Ukraine, Ukraine warns * Ukraine repatriates bodies of 1,200 citizens, soldiers under Istanbul deal

The Kyiv IndependentThe Kyiv Independent news desk