Ukraine’s Navy hit six Su-34M bombers at Russia’s Borisoglebsk military airfield in Voronezh Oblast with Neptune missiles overnight into 15 October, the Navy said. Residents filmed a large fire at the base after a missile alert, and the Navy’s count has not been independently confirmed. The facility is about 400 km from the frontline.

Glide bombs are now central to how Russia’s army fights, used to pin down Ukrainian defenders, including drone teams, before small infantry groups move in. They also hit frontline cities and the civilians who live in them.

Six bombers and flight equipment hit, the Navy says

The Neptune coastal missile system also hit technical equipment that supports flights, the Navy said. It recorded secondary detonations and a fire on the airfield and said details were still being clarified.

The Su-34M can carry several guided and high-explosive aerial bombs at once, along with missiles, the Navy noted. It called the jet one of Russia’s key tools for glide-bomb strikes on Ukrainian positions and frontline towns. In September, a Ukrainian Neptune missile reached a Russian warship at its own pier.

Fire over the airfield late on 14 October

Voronezh Oblast Governor Aleksandr Gusev declared a missile alert across the region shortly before 22:00 local time on 14 October. Within an hour, Ukrainian monitoring channel Exilenova+ reported explosions and a fire, preliminarily at the Borisoglebsk airfield. It later wrote that the airfield had come under missile attack and a fire was burning there. Ukrainian monitoring channel Supernova+ posted footage from the town showing the blaze.

On the morning of 15 October, Gusev claimed that 33 drones and several jet-powered aerial targets had been downed over the oblast overnight. He did not mention the airfield.

A base Ukraine has hit before

The airfield hosts the 783rd training aviation center and units of the 105th composite aviation division of Russia’s Aerospace Forces, which flies Su-34, Su-35S, and Su-30SM jets, Ukrainian defense outlet Militarnyi reported. In summer 2026, it had no permanently based combat jets, and Russia used it mainly as a stopover to refuel and rearm aircraft striking Ukraine, the outlet said, citing satellite observation.

Ukrainian drones hit the airfield overnight on 8 July, starting a fire, and satellite images later showed its fuel and lubricants depot destroyed. Drones also attacked the base’s pilot training center in July 2025.

The same night, Ryazan Oblast Governor Pavel Malkov reported a fire at an oil refinery in Ryazan. It came as Ukrainian President Volodymyr Zelenskyy said Ukraine was resuming strikes on Russian refineries.

Update: Satellite imagery confirms the strike

New satellite images show damage at Borisoglebsk airbase and six Su-34 bombers positioned in the affected area two days earlier, although the extent of the aircraft losses remains unconfirmed.

The monitoring channel Exilenova+ reports that 4 airframes were completely destroyed, while 2 others sustained significant damage.

Ukraine's Third Army Corps dropped kamikaze ground robots on Russian command nodes identified by reconnaissance during Operation Vivaldi, a corps intelligence officer told Radio NV. The strikes aimed to break command coordination and force Russia to divert combat troops to guard its own headquarters, while a parallel campaign destroyed a diesel pipeline that fed about half the daily fuel needs of Russia's entire West grouping.

Russia's full-scale war against Ukraine is now in its fifth year, with Moscow pushing simultaneously along the front and striking cities behind it with drones, cruise and ballistic missiles, and glide bombs. The Vivaldi operation is the first time Ukraine has publicly shown how a reconnaissance-to-robot strike chain works against command nodes without risking infantry, a method that could be replicated across other sectors where Russia's coordination depends on forward headquarters within drone range.

Reconnaissance identified command nodes, robots hit them

One of the tasks set by corps commander Brigadier General Andrii Biletskyi was to disrupt command and communications in the Russian chain of command, the officer said. Brigade and corps reconnaissance identified areas where a strike could break Russian control.

"Reconnaissance of the brigades and the corps identified such areas that could affect the disruption of enemy command. It was into these areas that robots were dropped to create panic, disrupt command, and prevent the enemy from being effective," the officer told Radio NV.

To protect their command posts from the robots, Russian forces had to pull in additional personnel—troops that could not then be used to resist the Third Corps' ground assault.

The Third Corps announced on 20 September that heavy bomber drones delivered kamikaze ground robots more than 10 km behind Russian lines, calling it a world first.

The same intel operation identified a frontline diesel pipeline

The same intelligence operation uncovered a pipeline running from Voronezh Oblast to temporarily occupied Luhansk Oblast. The pipeline carried finished diesel, not crude oil, and supplied about 50% of the daily fuel needs of Russia's forces on the direction, the officer said.

The corps struck both the intake point where fuel entered the pipeline and the output point where it was loaded onto tankers. The strikes forced Russia to dismantle the pipeline entirely. Russian forces now truck fuel from Voronezh Oblast, a 400 km supply run.

The pipeline's destruction affected not just the Lyman direction but the entire West grouping, including the Kupiansk and Borova directions, the officer said. The logistical disruption left frontline Russian drone units unable to refuel generators to charge batteries, and electronic warfare systems had to operate in a reduced mode.

Repair bases struck, 250 km logistics detour

Third Corps intelligence also located the repair base of Russia's 20th Army and its 144th Division. Ukrainian strikes during the preparatory phase forced Russia to relocate the base to Voronezh Oblast, increasing the repair route to 250 km.

Russia's 20th Army and its 144th Division, reinforced by assault detachments from the First Tank Army, remain the main strike force on the Oskil-Sviatohirsk direction, the officer said. The First Tank Army has been sending additional assault units to stabilize the Russian defensive line after Vivaldi, but these reinforcements are taking critical losses on logistics routes before reaching the combat zone.

Rubikon pulled out, Russian drone units at 70–90% strength

The officer said the corps headquarters specifically targeted Russia's most effective drone formations. During the preparatory phase, the elite Russian drone unit Rubikon was identified as a critical threat that could isolate the area of operations and obstruct Ukrainian maneuver.

Ukrainian reconnaissance located and passed targeting data to strike assets. Rubikon suffered heavy losses in equipment and personnel, and a senior Russian commander—misjudging the Third Corps' offensive potential—pulled the unit to rear areas for recovery at what turned out to be the worst possible moment, just as Ukraine's assault began.

Russian drone units on the direction are now staffed at 70–90%, the officer said. The corps is working to degrade their capability through targeted strikes on launch sites, pilot positions, and logistics in the second and third echelons.

Four seasons, two public

The officer said Russia's current task is to stabilize its defensive line, restore its observation network, and bring in additional reserves for counterattacks. Russia does not have enough personnel and will have to pull troops from training grounds before they finish their courses, shortening training cycles.

Operation Vivaldi has at least four "seasons," of which only the first two have been made public. The operation's name refers to Italian baroque composer Antonio Vivaldi, and The Four Seasons is his best-known set of four violin concerti.

Biletskyi confirmed the liberation of Shandryholove, Derylove, and full control over Drobysheve on 20 September, bringing the total to 40 km² of freed territory in the second season alone. Russian losses have reached an estimated 3,000 personnel overall, over 12,000 drones in the first season, and hundreds of vehicles, according to the Third Corps. ISW assessed that the operation disrupted Russia's plan to encircle the fortress belt of Donetsk cities—Sloviansk, Kramatorsk, Druzhkivka, and Kostiantynivka.