The "ATESh" partisan movement reported carrying out a sabotage operation against railway infrastructure in Belgorod Oblast. According to the organization's Telegram channel, as shared with RBC-Ukraine, the movement's agents disabled two relay cabinets on a section of railway that the Russian Federation's army had planned to use to ship a cargo of ammunition and engineering equipment toward the Kupiansk direction. The disruption of the railway signaling automation, the partisans claim, led to a halt in traffic on the section and the complete cancellation of the scheduled train departure. The operation is the latest in a series of sabotage strikes against the enemy's rear logistics, which "ATESh" has been carrying out systematically in occupied and border areas since the beginning of 2026.
Strike against railway automation
Relay cabinets are a critically important element of the railway traffic control system: they ensure the operation of signals, switch points, and interlocking devices on a given section of track. Disabling two such devices simultaneously, as the perpetrators claim, makes it impossible to safely pass trains without manual control, which in wartime conditions leads to delays lasting hours and sometimes even days. According to the partisans' assessment, it was precisely such a delay that resulted from the operation: the train was not dispatched at the scheduled time, and the military administration was forced to urgently reroute delivery paths and seek alternative ways of moving the cargo. For army logistics, already overloaded by active combat operations on several fronts, such failures at a railway node create a cascading effect of delays on adjacent sections.
Who the disrupted cargo was intended for
According to the "ATESh" statement, the delayed train carried ammunition and engineering equipment for two specific formations operating on the front line: the 138th Separate Motorized Rifle Brigade and the 45th Engineer-Sapper Regiment. Both units, according to open data, are deployed in the Kupiansk direction, where heightened intensity of combat operations has been recorded in recent weeks. An engineer-sapper unit typically handles road construction, the building of fortification works, and demining, making timely supply of engineering equipment critical for holding and consolidating positions. The disruption of delivery, by the partisans' logic, deprives these units of their planned resupply and forces the command to seek alternative supply routes, which, under active operations by the Ukrainian defense forces, significantly complicates the operational situation for the enemy.
The perpetrator: a choice against the "war machine"
One of the direct perpetrators of the operation, as emphasized by "ATESh," was a former serviceman of the Armed Forces of the Russian Federation who left the service and joined the partisan movement. The organization's statement quotes his position: "He chose not to be part of the war machine and now helps those who stand against Putin's regime. They are preparing a forced mobilization in Russia, and they need to be stopped." This statement fits into the broader rhetoric of "ATESh," which since 2024 has positioned its actions as both internal resistance and support for the Ukrainian defense forces. The involvement of former Russian military personnel in sabotage operations in border areas, observers note, indicates an expansion of the movement's manpower potential and its ability to conduct operations requiring knowledge of railway infrastructure and military logistics schemes.
Broader context: the front and the Kremlin's plans
The operation in Belgorod Oblast was carried out against the backdrop of a generally tense situation on the front. Over the past few days, Ukrainian sources note, the Russian army attempted advances on various directions, but in most cases counterattacks by the Ukrainian defense forces thwarted the enemy's plans. Earlier reports described a breakthrough by Ukrainian units in three oblasts at once. Meanwhile, according to data previously published by Ukrainian intelligence structures, the Russian military leadership received a task from the Kremlin to plan several variants of a possible operation toward Kyiv and Chernihiv. In such a situation, strikes on rear logistics take on added significance: they not only delay current supply but also hinder the concentration of forces for possible new offensive operations, which, according to available data, are at the planning stage in Moscow.
Contradictory data
It should be noted that all information about the operation is based on the statement of the "ATESh" partisan movement itself, transmitted via its Telegram channel and republished by RBC-Ukraine. The Russian side, including the military command and the authorities of Belgorod Oblast, did not confirm or refute the fact of the relay cabinets being disabled in the sources provided for fact-checking, nor did it comment on the delay of a specific train or its destination. The exact time of the operation, the specific section of railway, and the volume of the delayed cargo are not specified in the open statement. Thus, the version of the disrupted train and its recipients (the 138th Brigade, the 45th Regiment) is currently a one-sided partisan claim that has not received independent confirmation. At the same time, the fact of "ATESh" sabotage activity in Belgorod Oblast in 2026 is documented by a number of previous incidents, which makes the statement plausible, though not ruling out elements of exaggeration in the details.
