Ukraine has completed its Operation Vivaldi, aimed at protecting its fortress belt cities of Donetsk Oblast, which helped Kyiv preserve the region from Russian occupation for 12 years. Brigadier General Andrii Biletskyi, the commander of the Third Army Corps behind the operation, has reported that the fourth phase secured 101 km² of territory. Among the latest achievements is the liberation of three settlements—Zelena Dolyna, Lypove, and Kolodiazi.

The operation's main objective was to move Ukrainian troops into more advantageous defensive positions, Biletskyi said in the first days after the operation was made public. Vivaldi has now summed up the results of all four phases: Ukraine has established full control over 16 settlements, liberated 277 km² of territory, and inflicted 8,000 casualties on Russian forces.

Ukraine worked against Russia's deadline

During Operation Vivaldi, Ukrainian forces have prevented Russian troops from outflanking the Sloviansk-Kramatorsk agglomeration and cutting the Kharkiv–Sloviansk highway, a key supply route for Ukraine’s forces in Donbas, Biletskyi says.

“We thwarted the offensive of the Zapad grouping and forced it to redeploy some units of the 1st Tank Army, which eased pressure on Kupiansk-Vuzlovyi,” Biletskyi announces.

Previously, the Institute for the Study of War noted that Russian President Vladimir Putin was confident that Russian forces would be able to seize the entire Donetsk Oblast by the end of 2026 — the Kremlin’s latest deadline for achieving this goal.

Ukraine’s military was on a mission to prevent this.

Season one: clearing russian infiltration groups

On 15 September 2026, Ukraine’s Third Army Corps announced Operation Vivaldi in northern Donetsk Oblast. During the first phase, Ukrainian troops cleared Russian groups from 75 km² of territory and liberated another 10 km².

The Third Army Corps said it had struck Russian supply routes and fuel infrastructure, prompting Russia to relocate its fuel and lubricant reserves to Voronezh Oblast. According to the corps, Russian forces lost around 1,500 troops, more than 12,000 drones, and hundreds of pieces of equipment.

Season two: liberation of Shandryholove and Derylove

On 20 September, the Third Army Corps reported the liberation of Shandryholove and Derylove and the establishment of full control over Drobysheve.

During the second season, Russian forces lost another 800 troops, bringing their total losses across the first two seasons to more than 3,000, according to the corps.

During the first two seasons of the operation, Ukrainian troops and attached units regained control of 125 km² of territory, including 50 km² that had been fully liberated.

The first phase of Vivaldi involved eliminating Russian groups that had infiltrated Ukrainian positions, explained the commander of a battalion in the 125th Brigade, callsign Darwin, per ArmyInform. After clearing those groups, the Defense Forces moved on to the operation’s second phase, using reconnaissance drones to detect Russian forces, he added.

For this, Ukraine used UAVs and ground robotic systems.

“The Third Army Corps was the first in the world to begin deploying ground robotic systems by air. Our heavy bombers deliver kamikaze ground robotic systems more than 10 kilometers behind enemy lines,” Biletskyi noted.

Season three: advances near Novе and Ridkodub

On 28 September, the Third Army Corps reported the liberation of Nove, Ridkodub, and Katerynivka and the restoration of control over Karpivka and Novomykhailivka. Ukrainian forces regained another 51 km² of territory, bringing the total area liberated since the start of the offensive to 176 km². Russian forces lost around 2,000 troops, and more than 250 were taken prisoner, the corps said in its summary of the operation’s third phase.

“The Russians were convinced that the main axis of attack was Shandryholove–Zelena Dolyna. This led it to squander its reserves in counterattacks along that very axis. The Russians slept through the actual strike, which was focused on capturing Nove,” Biletskyi said.

Operation Vivaldi aimed to disrupt Russia’s plans in Donetsk Oblast

The need for Operation Vivaldi arose amid Russian attempts to encircle Ukraine’s fortified belt in Donetsk Oblast. Ukrainian forces conducted preparatory efforts aimed at degrading Russia’s offensive capabilities, including strikes on Russian drone operators, the Institute for the Study of War reported on 9 October.

Ukrainian counterattacks in the Lyman direction and east of Sloviansk and Kramatorsk were intended to complicate Russian efforts to seize the fortified belt in Donetsk Oblast, the report noted.

The corps advanced gradually, reclaiming small areas instead of attempting a large-scale breakthrough.

Russia is building a satellite network that could soon put all of Europe within its reach. The “Rassvet” satellite system is an extraordinary threat, first to Ukraine and then to the rest of Europe, Oleksandr Danyliuk, the head of the private European aerospace and defense technology company Destinus, said at the Warsaw Security Forum, according to Ukrinform.

Rassvet is Russia’s answer to Starlink, a low-orbit satellite network built by Bureau 1440 to give Moscow’s forces communications that no one else can switch off. European states must invest more quickly in cheap, effective, mass-produced systems to counter it.

“They will be able to navigate to any point in Europe without problems. This needs to be stopped,” said Danyluik, a former Ukrainian finance minister, said.

Cheap systems, made at scale

Danyliuk’s prescription is already being used on Ukraine’s front. Europe should invest in inexpensive, effective systems that can be mass-produced, he argues, the same approach Ukraine uses, and that Russia also turns against it.

“This gap needs to be filled as quickly as possible,” he said.

He urged allies not to overlook threats that might look secondary today, pointing to Rassvet as exactly that kind of slow-building danger.

Appearing strong is not enough to deter Russia, Danyliuk argued, because Moscow can gauge how ready European states actually are.

Ukraine races to catch up

Both sides are now scrambling to own the satellite link rather than rent it. Ukraine is building a satellite system of its own, similar to Starlink but beyond any single company’s control, President Volodymyr Zelenskyy said on 4 October.

He argued Kyiv should be free to turn Starlink on Russian military targets, warning that China and other states will share comparable satellite technology with Moscow within months.

By Ukrainian estimates, Russia still needs five to eight years to complete Rassvet, which so far reaches Ukraine only in brief passes. That window is the time Danyliuk says Europe must use.

Aviation is one of the most effective ways to counter Russia’s jet-powered drones. Its effectiveness continues to grow due to pilots’ skill and better coordination, Defense Minister Yevhenii Khmara says, Glavcom reports.

Russia’s jet-powered Gerans fly several times faster than the propeller Shaheds Ukraine learned to shoot down, and they remain the main challenge for its air defense. Ukraine downs more than 90% of the slow drones but only about 55% of the jet ones.

“Due to them, our aviation now uses fewer munitions per aerial target. We plan to improve this further,” Khmara states.

Air defense works as a layered system because no single type of weapon is enough, he explains. The layers run from surface-to-air and shoulder-fired missiles to turrets, electronic warfare, interceptor-drone crews, and small-scale air defense, topped by aircraft including Mirage and F-16 jets.

Scaling what works against jet drones

Ukraine already has combat results against the jet drones, Khmara notes. In one engagement, five Bars interceptors destroyed five aerial targets, a 100% hit rate in that case, and the task now is to raise the overall destruction rate and quickly scale the solutions that prove themselves.

Heavy-caliber turrets are adding to that. Their number in service already runs into the hundreds, he adds.

“This direction is being scaled, and systems with greater range are being worked on. In parallel, surface-to-air and shoulder-fired missile systems are also proving effective,” he says.

Preparing for the next generation

Ukraine is also looking past today’s threats, the minister stresses. The ministry is working to supply interceptor drones, aviation and its munitions, missile and artillery systems, turrets and electronic warfare gear, and to plan several steps ahead with enough stock in reserve.

“We also know what solutions Russia is developing, which concern jet drones with a speed of 800 kilometers per hour. We are working on finding countermeasures to the next generation of threats,” Khmara says.

Producers have been tasked with offering proposals and prototypes, he concludes.

Russia is developing new navigation systems for attack drones and missiles that could make its strikes against Ukrainian cities harder to stop, as Moscow adapts its weapons to counter Ukrainian electronic warfare defenses, Ukrainian defense technology adviser Serhii “Flash” Beskrestnov said.

The shift poses an additional challenge for Ukraine as Russia continues to attack cities and critical infrastructure with drones and missiles. Systems that can navigate without relying on satellite signals may be harder to disrupt electronically, increasing the importance of other defenses, including interception and physical destruction of incoming weapons.

Image-based navigation could make Russian strike drones harder to jam

Beskrestnov, an adviser to the Ukrainian president on defense technology development, said image-based navigation systems would see wider use in 2027, including in medium- and long-range strike drones and inexpensive cruise missiles.

The technology allows drones to navigate by comparing images captured by an onboard camera with stored photographs of the terrain. Even basic navigation can use publicly available satellite or ground imagery from services such as Google, Beskrestnov said.

Unlike satellite navigation, which can be disrupted by electronic warfare, image-based navigation relies on visual recognition of the terrain. This makes drones using the technology more resistant to jamming and could allow them to continue toward their targets even when satellite navigation signals are unavailable.

Russia already uses image-based navigation on attack drones

Beskrestnov said Russian forces were already using the technology on several types of unmanned aircraft, including Molniya, V2U, and Lancet drones.

He also reported that similar systems had recently been identified on the Russian Geran-4 and Geran-5 attack drones, using a flight controller called Susanin.

The Geran series includes Russian attack drones used in strikes against Ukrainian cities and infrastructure. The introduction of image-based navigation could make some variants more difficult for Ukrainian forces to counter using electronic warfare.

Russia adapts its weapons to Ukrainian defenses

The development reflects Russia’s broader effort to adapt its weapons as Ukraine improves its air defenses and electronic warfare capabilities. By reducing reliance on satellite navigation signals, Russian drones can become less vulnerable to one of Ukraine’s key methods of disrupting incoming attacks.

Beskrestnov warned that image-based navigation would expand beyond individual drone models, with broader adoption expected next year across different categories of strike weapons.

A Ukrainian company has played the enemy in a Pentagon drone contest, and the US liked what it saw. Phantom Defense, a Ukrainian defense-tech firm, was one of three companies whose systems built the counter-drone environment for Gauntlet II, the second stage of the US military’s Drone Dominance program, and has been invited to take part further, Defender Media reports.

Drone Dominance is the Pentagon’s four-phase effort to field cheap attack drones fast, a roughly $1 billion program to buy more than 200,000 low-cost attack drones by 2027. Phantom Defense brought a system that was already proven at home, where in one city it neutralized more than 7,000 enemy drones over an area of more than 100 square kilometers in a year, the company says.

Rather than enter a drone of its own, Phantom Defense supplied the resistance that the American drones had to fly through. Its setup paired the Specter PRO, L, X, and XL jammers with the Streamhunter video-interception tool and a command-and-control layer that detected and classified targets, coordinated the countermeasures, and confirmed the kills. The jammers suppressed drones and held up in heat and rain, it adds.

The arrangement lets American developers fly their drones under live electronic attack rather than calm conditions, recreating a battlefield where a drone’s performance swings with the jamming around it, according to the company.

One map to run the whole fight

At the center sits Phantom Defense’s C2 system, Kupol, which integrates separate tools into a single ecosystem on a shared map. It lets crews run electronic warfare remotely, without driving out to a position, and ties in sensors, interceptor drones, and turrets, the company says.

Kupol reads the terrain and a drone database to propose the best way to take down a target, then logs each mission automatically so its recommendations sharpen over time.

The high-power Specter PRO station, built to shield positions, critical infrastructure, and cities, serves as the hardware anchor.

An invitation, not yet a contract

Previously, Ukraine’s battle-tested drone makers also took part in Drone Dominance. However, they didn’t succeed in it, though some of their technology competed under Western partners. The program bars direct purchases from Ukrainian firms, which must set up a US legal entity to bid.

Russia keeps upgrading its jet-powered drones, and Ukraine's electronic warfare is racing to keep up. Kyiv has set extra tasks for its military and manufacturers to scale up the most effective electronic warfare approaches, President Volodymyr Zelenskyy said after a meeting of the Supreme Commander-in-Chief's Staff on electronic warfare and infrastructure protection.

Russia keeps modifying its jet-powered Shaheds to beat each new Ukrainian defense, and Ukraine's answers have to keep pace. The race is tight: from 1 to 26 September, air defenses downed only 55 percent of the 2,730 new jet-powered drones, against 90% of the slower ones.

Hidden relays blunt Kyiv's jammers

Jamming has to improve because Russia keeps finding new ways around it. On 3 October, presidential adviser Serhii "Flash" Beskrestnov said someone had installed Russian MESH radio repeaters in Kyiv, a short control channel that guides Shahed drones onto their targets. As long as they are there, he said, closing the city with electronic warfare will not be effective.

"As long as online control of drones exists, not only the bridges but the air defense assets will be under threat," Flash stressed.

Sanctions aim at the supply chain

Beyond the jamming task, the Staff turned to where Russia gets the parts for those drones. Defense Intelligence reported on Russia's technological priorities for this year and next, and on supplies of critical components and equipment for its weapons production, Zelenskyy said.

New sanctions packages will follow, with Defense Intelligence due to send proposals to the Ukrainian government and the National Security and Defense Council, and Ukraine is working to align its sanctions with partners' jurisdictions.

The Staff also set the main tasks for supplying Ukrainian forces with long-range drones next year.

"The main criterion is that we must be able to respond in kind to Russian strikes," Zelenskyy emphasized.

Those parts, and the drones built from them, keep changing

In August, Intelligence Deputy Chief Vadym Skibitskyi said Russia remained fully dependent on Chinese turbojets for the Geran-4 and Geran-5, each costing about $35,000 to $40,000.

However, two months later, Ukraine reported the Geran-4 had received a locally built engine and a new optical navigation system. Kyiv has to stay attuned to changes to keep pace with the technology race, and so far, it is still trying to catch up rather than get ahead.

The U.S. Marine Corps is buying Anduril Pulsar-L electronic warfare jammers to meet an urgent operational need to better protect its 8×8 wheeled Amphibious Combat Vehicles (ACV) from drones. This is part of broader efforts the service is pursuing to boost the ACV’s defenses against uncrewed aerial attackers, as well as incoming anti-tank guided missiles and other threats. Drone threats are real now and have notably sidelined even the most advanced heavy armor in Ukraine.

Marine Corps Systems Command (MARCORSYSCOM) announced it had awarded a sole-source deal to Anduril, valued at $15,711,445.50, for an unspecified number of Pulsar-Ls, yesterday. This follows a statement of intent the Command put out last month. Anduril first unveiled Pulsar-L, a lightweight addition to its larger Pulsar family of electronic warfare systems, in April 2025.

The Marine Corps had 150 baseline personnel carrier variants of the ACV (or ACV-Ps), as well as 21 command-and-control ACV-C versions, in inventory as of April 2026. The default armament for ACV-P currently is just a single .50 caliber M2 machine gun in a remote weapon station on top of the hull. The service’s goal is to eventually acquire 389 ACV-Ps and 33 ACV-Cs, as well as 152 ACV-30s with new 30mm cannon-armed turrets and 34 ACV-R armored recovery vehicle variants. The ACV family has already supplanted the Marine Corps’ previous fleet of tracked Assault Amphibious Vehicles (AAV).

“The Anduril Pulsar-L system is a platform-integrated omni-directional SK C-UAS [soft-kill counter-uncrewed aerial systems] with a combined sensor/jammer package that detects, tracks, identifies, and defeats radio frequency-dependent Group 1 and Group 2 Unmanned Aerial Systems (UASs),” MARCORSYSCOM wrote in a justification for the sole-source contract, which was also released yesterday. “Additionally, the system provides counter positioning, navigation, and timing capabilities.”

The U.S. military definition of a Group 1 drone is any design weighing up to 20 pounds, that is able to fly up to an altitude of 1,200 feet, and that can reach speeds of up to 100 knots. Group 2 is the next tier up, encompassing types with gross weights between 21 and 55 pounds, that can get up to an altitude of 3,500 feet, and hit top speeds of up to 250 knots. Kamikaze drones and other small weaponized types that fall into Groups 1 and 2 are used on a daily basis in Ukraine to attack armored vehicles, as well as unarmored vehicles and personnel. These are threats that have been steadily expanding to other hotspots globally, and that we will come back to later on.

Furthermore, “the Pulsar-L is the only solution capable of being mounted on the ACV to provide a mobile and organic means to effectively and simultaneously execute the entire kill-chain against hostile UASs in the deployed land and maritime/littoral environment while not exceeding the limited ACV space, weight, and power claim allotted to the SK C-UAS solution,” according to MARCORSYSCOM. “This will provide the ACV with an essential defensive capability, directly contributing to increased survivability and force protection while not sacrificing the mobility and operational tempo of the ACV.”

Pulsar-L is already “in use by the Special Operations Command due to the system’s low weight, proven performance in engaging multiple UASs, and simultaneous execution of the full kill-chain while static or on the move,” the justification document adds. “Additionally, it is the only known commercially available system that meets the minimum requirement to rapidly identify and respond to emerging UAS technologies and tactics without frequent updates to predefined threat data libraries. The Pulsar-L is the only solution that uses machine based learning to continually adapt to these ever-changing threats without requiring vendor updates, allowing the warfighters to continually be effective in the fight.”

The latter point here is a particularly important consideration for electronic warfare systems, in general, which need to be able to accurately detect, categorize, and respond to different waveforms to be most effective. The emergence of new waveforms, as well as changes to how existing ones are emitted, together with new tactics, techniques, and procedures, can all negatively impact a system’s performance. Historically, the process of responding to those developments with updates to built-in threat libraries has been lengthy and complex. The conflict in Ukraine has shown that the cycle of new developments in the electromagnetic spectrum and then the need for new countermeasures can be regularly measured in weeks.

The U.S. military has been heavily investing in so-called cognitive electronic warfare capabilities to help automate and otherwise accelerate various aspects of this process. The ability of a particular electronic warfare suite to adapt autonomously in real-time, even in the middle of operations, has been viewed as the absolute ‘holy grail’ of this concept, which you can read more about here. How exactly Pulsar-L leverages machine-learning and artificial intelligence to this end, and the speed with which it can adapt to changing threats, is still not entirely clear.

Regardless, “there is an unusual and compelling need for the rapid deployment of SK C-UASs to forward-deployed ground units as Marines currently lack the ability to conduct self-defense against emerging UAS threats,” the justification document stresses. “Failure to deliver this capability places Marines at unnecessary risk, potentially leading to mission failure and loss of life, and hampers the Government’s ability to keep them safe during forward deployments.”

MARCORSYSCOM’s justification for the sole-source deal to Anduril does not otherwise elaborate on the urgent requirements that drove the deal, which it says were only formalized on April 7. That is notably roughly a week after the United States and Israel first launched major combat operations against Iran, which is a prolific developer and user of various tiers of weaponized drones. There is no explicit confirmation of any link, but Iranian drones, as well as missiles and other capabilities, have been a real threat to U.S. forces in the region. We have also just gained more insights recently into how forward-deployed Marine Corps elements contributed to those operations. Counter-drone capabilities would also be especially critical in any future amphibious landing operation, wherever it might occur.

All that being said, threats posed by armed Group 1 and 2 drones are not at all limited to Iran and the Middle East, nor are they new. They are only likely to become a more ubiquitous feature in the hands of nation-state armed forces and non-state actors in conflict zones globally as time goes on. The nature of these threats is also expanding significantly in scale and scope, especially when it comes to more automated targeting capabilities, thanks heavily to the increasing democratization of AI-driven technologies, something TWZ has explored in depth in the past.

A number of other significant developments in this arena have emerged from the conflict in Ukraine, where electronic warfare systems are heavily employed against drones. This includes the introduction of physical fiber-optic control links that cannot be jammed, as well as the use of mesh-like and often ad-hoc networks to increase resiliency.

The fighting in Ukraine has also underscored the threat that even small kamikaze drones pose to armored vehicles, including types that are far more heavily protected to start with than the Marine Corps’ ACVs. As mentioned, Ukrainian forces have been sidelining their M1 Abrams and other main battle tanks in the face of constant drone attacks.

MARCORSYSCOM’s justification for the Pulsar-L order makes clear that this is just one part of a larger plan to boost the ACV’s defenses.

“Marine Corps program of record for SK C-UAS is planned to initiate in FY27,” the document mentions toward the very end. “The components of this future program will be procured through full and open competition as it is expected that advanced non-kinetic and SK defeat technologies should be mature by this time.”

Marine Corps officials have also talked in the past about integrating active protection systems (APS), which could be blended together with C-UAS capabilities, and other defensive features to the service’s ACV fleet.

“We’re constantly looking at what the next generation of APS is and how we can get that onto the [ACV] platform in a lightweight form factor,” Chris Melkonian, the Marine Corps’ Program Manager for Advanced Amphibious Assault (PM AAA), told TWZ and other attendees at the annual Modern Day Marine exposition in April.

Improved “situational awareness, that’s kind of a gateway to counter-UAS, in terms of the ability to sense your environment,” Melkonian also highlighted at that time. “Take all that video on board and then be able to feed that into [a] counter-UAS system.”

Additional “overhead protection right now is a critical thing that we’re working on right now for this platform,” he added. The practice of adding on anti-drone armor screens on armored vehicles (and now other platforms), especially to protect against top-down attacks, first emerged in Russia in the lead-up to the all-out invasion of Ukraine in 2022. However, the installation of this kind of so-called ‘cope cage’ type armor has now become a global trend, including in the U.S. military.

The U.S. Marine Corps is also pressing ahead with a larger vision to field several tiers of counter-drone capabilities at all levels of its forces, to better protect everything from static installations at home and abroad right down to individual squads.

When it comes to the Marine Corps ACV fleet, the rush order for Pulsar-Ls is an important new step in boosting those vehicles’ defenses against threats that exist now. At the same time, drones are increasingly calling the role of armored vehicles in future conflicts into question.

Contact the author: joe@twz.com

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