Sitrep for June 5-8, 2026 (as of 7:30 a.m. UTC+3)
Frontline Situation Update
Of all sectors of the frontline, the Kostiantynivka direction is currently the most concerning for Ukrainian forces. Even so, DeepState's maps have shown little more than an expansion of the contested area in recent weeks. In early June, that zone spread to both the eastern and western outskirts of Kostiantynivka. In our view, however, those areas can already be considered partially captured, and the situation in the town is becoming increasingly dangerous for the Armed Forces of Ukraine. What is unfolding increasingly resembles the battle for the town of Pokrovsk, when for many months the Ukrainian side declined to acknowledge—and DeepState's analysts declined to reflect on their maps—that the gradual infiltration of Russian assault troops into the town was producing results and that Ukrainian forces were slowly losing ground.
A similar pattern is now emerging in Kostiantynivka. Having established positions on the town’s eastern and western outskirts, the Russian Armed Forces continue to build up their presence and infiltrate additional neighborhoods, gradually expanding their control over the town. This process could take a considerable amount of time. The Ukrainian command will likely continue holding its remaining positions in Kostiantynivka for as long as possible, even after it becomes widely apparent that the town can no longer be held. A similar situation unfolded in the northern outskirts of Pokrovsk: only on June 8 did Playfra confirm that Ukrainian forces had not maintained a presence there since early or mid-May.
Reports are increasingly indicating that Russian forces are striking Ukrainian supply routes between the town of Druzhkivka and the village of Oleksiievo-Druzhkivka, further complicating the situation for Ukrainian troops in Kostiantynivka. A recently published video also appears to show a small-arms engagement in a multi-story residential area on the town's southwestern outskirts. In the footage, Ukrainian soldiers attempt to escape a pursuing enemy force by moving between fourth-floor balconies of a heavily damaged apartment building, but are ultimately killed.
This is worth keeping in mind when considering recent reports that positions have been captured using ground robots and UAVs without the involvement of infantry. Such a scenario may be plausible in open terrain or even in low-density residential areas, but it is far less convincing in dense urban environments filled with rubble and obstructed routes. Bringing down a multi-story building typically requires far more than a single robot carrying anti-tank mines, and soldiers can often continue using basements in damaged buildings as shelters that remain difficult to detect even with drones.
In such circumstances, tanks can still play an important role by moving close enough to engage fortified positions with direct fire. By contrast, drone-versus-drone combat—or drones attempting to clear urban positions without infantry support—remains of limited effectiveness.
Multi-story apartment blocks, however, can be brought down with heavy guided bombs. A recent video from the town of Rodynske, north of Pokrovsk, where fighting is currently underway, reportedly shows a Ukrainian Sukhoi Su-27 multirole fighter aircraft dropping a glide aerial bomb on a partially destroyed apartment building.
In contrast, Ukrainian drone operators repeatedly struck a building in the occupied town of Oleshky, Kherson region, in late May, yet the structure remained standing despite the numerous impacts. That said, several drones carrying large enough warheads can inflict significant structural damage. For example, a college building in the town of Starobilsk was partially destroyed in this manner.
French researcher Clément Molin has published a new infographic mapping geolocated Russian airstrikes on the Huliaipole direction. Strikes carried out between February and April are marked in red, while those recorded in May are shown in white.
The distribution of these strike locations suggests that the frontline has been gradually shifting westward, providing further evidence of Russian advances in the eastern part of the Zaporizhzhia region.
Ukrainian and Russian Strikes
Ukraine's campaign of strikes against Russian logistics in the occupied territories continues. In particular, numerous strikes are being carried out against the R-280 highway, which runs from Rostov-on-Don along the coast toward Crimea. Molen has again mapped these strikes. While they complicate the situation on the peninsula, we do not currently see a direct operational impact on combat operations. The supply of Russian forces in the Huliaipole direction—the sector closest to this highway—is conducted primarily from occupied territories and nearby Russian territory rather than via the aforementioned route.
Russian authorities have to provide supplies not only to military personnel but also to civilians residing in occupied Crimea. In this regard, the R-280 highway is of considerable importance. The Crimean Bridge across the Kerch Strait has long ceased to be used for fuel shipments, likely due to concerns that a missile strike on a fuel train could cause significant damage to the bridge structure. In addition, railway ferries operating across the Kerch Strait have previously been damaged by Ukrainian strikes.
Should the land corridor become unavailable for full-scale use—a scenario we do not rule out by mid-summer—Russia could transport humanitarian cargo by aircraft of the Russian Ministry of Emergency Situations, such as Il-76 and An-124 transport aircraft, for example to Simferopol Airport. Even in that case, however, the impact on combat operations would likely be significant only if the RuAF were to launch larger-scale offensive efforts in the Orikhiv direction, aiming ultimately to capture the village of Mala Tokmachka and advance further toward the town of Orikhiv or even the city of Zaporizhzhia. At present, however, this is far from Russia's highest-priority axis.
If the AFU possessed the capability to sever Russian logistics at ranges of 80-100 km [50-62 mi] through drone strikes, it would be more logical to concentrate such efforts in the Donetsk region in order to halt Russian advances in Kostiantynivka and in the Huliaipole direction. To date, however, the scale of logistics interdiction strikes in that area has been comparatively limited. Nevertheless, there is a clear rationale behind strikes against trucks and fuel tankers on the R-280 highway. While such attacks are unlikely to cause a collapse of the frontline, they could create a severe situation in Crimea, potentially escalating into a humanitarian crisis. A deterioration in the peninsula's supply situation could, in turn, worsen the political climate within Russia ahead of the State Duma [lower house of the Federal Assembly of Russia] elections scheduled for the fall. At present, however, the situation does not appear critical. According to Molen's confirmed data, more than 290 strikes against vehicles have been recorded since the beginning of May, but this represents only a small fraction of total Russian logistical traffic in the affected sector of the occupied territories. Moreover, in a number of cases the targets were canvas-covered cargo trucks with no visible payload, raising the possibility that some of them were traveling empty.
Purchase limits on vegetable oil and pasta have been introduced in supermarkets in Sevastopol. We suspect that, at this stage, this is being driven not by shortages but by panic buying: fearing that drone strikes may disrupt food supplies in the near future, Crimean residents are stockpiling essential goods. Reports have also emerged of fuel shortages, sales restrictions and queues at petrol stations in Russia’s constituent Republic of Tatarstan, as well as in Leningrad, Belgorod, and Kursk regions, and in Moscow and Moscow region. At the same time, it is impossible to determine reliably to what extent this is a consequence of strikes on logistics and oil infrastructure, and to what extent it reflects efforts to prevent panic buying and speculation. The RuAF will not abandon the deployment of troops on the right bank of the Dnipro, so measures to protect military trucks will almost certainly be introduced. These may include electronic jammers, escort vehicles equipped with machine guns and assault rifles, and interceptor drones.
We have previously written about the Russian Yolka kinetic interceptor drone. Recent footage of its use shows that these drones are still being manufactured using 3D printing, which suggests that they have yet to be mass produced. 3D printing is significantly more expensive and slower than injection molding and is not intended for large-scale manufacturing. At the end of April, pro-war Z-channels complained that operators were not permitted to equip these drones with a payload.
According to The Wall Street Journal, Vantor (formerly part of Maxar) has begun providing Ukrainian military personnel with access to operational satellite imagery. As a result, near real-time imagery is now available not only to Ukraine’s General Staff and military intelligence but also directly to Ukrainian service members who have the appropriate level of access. The company also provides historical imagery and a convenient interface for comparing newly acquired images with archived ones. On the one hand, reducing the kill chain—the time between identifying a target and striking it—improves the effectiveness of military units. On the other hand, as a former CIA officer interviewed by the newspaper noted, the established procedures were developed for a reason. Without specialized training, personnel may misinterpret satellite data, fail to analyze imagery thoroughly, and draw incorrect conclusions, which could lead to civilian casualties.
On June 6, the Security Service of Ukraine (SBU) struck the 15th Naval Arsenal of Russia’s Navy near the village of Bolshaya Izhora, Leningrad region, while Ukrainian special forces targeted a naval base in Kronshtadt. Footage capturing secondary detonations near Bolshaya Izhora corroborated strikes on munitions depots. Leningrad Region Governor Aleksandr Drozdenko reported evacuations in the area and four civilian injuries, including a child, following the attack. According to the Dos’ye Shpiona [Spy Dossier] Telegram channel, the attack involved around 40 UAVs, with 32 shot down by air defenses. The strike reportedly resulted in two Russian military fatalities and the destruction of approximately 5,000 tons of engineering and artillery munitions of various calibers. We assume those were naval shells used in Ukraine only in 2022, and therefore we do not expect the destruction of this arsenal to have a noticeable impact on the war.
On June 1, the dry cargo ship Leonid Pestrikov was attacked in the port of the city of Berdiansk, and in the early hours of June 5, UAV strikes targeted vessels in Mariupol and Berdiansk ports. On June 6, Mariupol’s port infrastructure was hit, likely in an effort to sever supply lines to occupied Crimea and adjacent territories.
A pro-Russian Telegram channel published a photo of an 8-array CRPA antenna, which allows GPS signal reception despite the use of jammers, found in unidentified debris.
The CAGE code found on the antenna's circuit board and housing is a manufacturer code assigned to US government contractors, primarily the Department of Defense. This code points to Zone 5 Technologies. This company develops ERAM cruise missiles, various drones and counter-drone systems. In 2024, Zone 5 Technologies was awarded a contract by the US Air Force to develop a variant of the ERAM, later designated the AGM-188A Rusty Dagger. While the exact range of this missile remains unknown, it is estimated that it could reach up to 450 km. In August 2025, the US State Department and the Defense Security Cooperation Agency issued a press release approving the sale of 3,350 ERAM missiles to Ukraine for a total of $825 million, along with an equal number of integrated GPS/INS navigation systems. Without knowing the planned delivery timeline for these missiles, it is impossible to assess their potential impact on the war in Ukraine. Nevertheless, based on this photo of debris, it can cautiously be assumed that the first ERAM missiles (or their experimental prototypes) may already have reached the AFU.
A group of scientists from the University of Texas published a study based on data from stations that record GPS signals across various locations in Europe. They noticed that, from October 2019 onwards, the GPS signal would vanish once or twice a month for about two seconds across a vast territory, often covering all of Europe, due to some form of interference. For more details, we recommend watching the video on the Veritasium science channel. The hypothesis involving ground-based installations was ruled out because the "jammer" affected an area that was far too large. After obtaining detailed data from two stations regarding a single incident in February 2026, researchers identified the satellite responsible for jamming the signal: Kosmos-2546, a Russian missile early warning system satellite.
We hypothesize that this system is designed to jam GPS signals and complicate navigation if nuclear-warhead missiles are launched toward Russian territory. Since this satellite was launched in 2020 and jamming incidents began earlier, it is reasonable to assume that all Russian missile early warning satellites launched since 2019 are equipped with these jammers.
The reason why the Russian Aerospace Forces activate the jammers for just a couple of seconds multiple times a year remains unclear. Scientists suggest that this may be for testing or calibration purposes or perhaps to transmit covert signals.
It is worth noting that the GPS disruptions reported by pilots flying European officials' planes lasted several hours. These disruptions are consequently unrelated to the incidents discussed in the study and were caused by ground-based jammers.
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