Ukraine’s Underground ‘Veles’ Operation Exposes Russian Vulnerability on the Kupiansk Front
Ukrainian forces say they used gas pipelines and tunnels to move more than 15 kilometers behind Russian lines on the Kupiansk axis, in an operation that ended with dozens of Russian troops captured. The raid signals how Ukraine is adapting around static trench lines and could complicate Russia’s push toward a key logistics hub in Kharkiv region.
Ukraine is claiming one of its most unconventional recent battlefield successes: a deep penetration behind Russian lines on the Kupiansk axis using underground gas pipelines and tunnels. If confirmed, the raid shows how a grinding front of trenches and minefields is giving way to a more three‑dimensional fight in which what lies below ground is as important as what happens in open fields.
Ukraine’s Khartiia Corps released details of what it calls Operation Veles, describing a combined underground‑and‑surface counteroffensive in the Kupiansk sector of Kharkiv region. According to the unit, Ukrainian forces advanced more than 15 kilometers into Russian rear areas by moving through a main gas pipeline, connecting tunnels and other subterranean routes, while surface formations and drones provided cover and conducted supporting attacks.
The corps says the result was significant: Russian forces attempting to threaten Kupiansk’s rear were blocked from doing so. Ukrainian troops reportedly captured more than 30 Russian soldiers, with further unspecified Russian casualties. Independent visual evidence of the operation’s full scale has not yet emerged, and Russian authorities have not publicly commented, so the details remain based on Ukrainian accounts.
For soldiers on both sides, the tactical implications are stark. Russian units that thought they understood where Ukrainian forces could maneuver now face the prospect of troops and small assault groups appearing inside their rear positions from beneath their feet. Ukrainian troops, in turn, are operating in confined, potentially fragile infrastructure—gas pipelines and tunnels not designed for combat—where oxygen, structural stability and the risk of detection are constant concerns.
Kupiansk itself carries outsize importance in the northeast. The city is a key rail and road hub feeding Ukrainian positions in the Kharkiv region and beyond. Russia has sought to regain ground there after its earlier losses in 2022, pressing along the axis with infantry, artillery and glide‑bomb attacks. A successful Ukrainian move that cuts off Russian attempts to approach the city from the rear would help stabilize at least part of this contested front.
Strategically, Operation Veles suggests Ukraine is leaning harder into asymmetric and innovative tactics to offset Russia’s advantages in artillery, aircraft and sheer volume of munitions. By exploiting existing infrastructure—gas pipelines, maintenance tunnels, underground access routes—Ukraine can bypass heavily mined ground and fortified tree lines that have stalled previous offensives and counteroffensives.
There is also a psychological dimension. If Russian troops believe Ukrainian forces can infiltrate deep into what they consider safe rear areas, command posts and logistics depots may have to move further from the line or commit more troops to rear‑area security. That can thin the density of Russian forces at the front, exactly where Moscow has been trying to concentrate pressure.
The use of critical energy infrastructure as a maneuver route raises obvious risks and questions. Any damage to a main gas pipeline from military use or combat could have serious civilian and environmental consequences, depending on the line’s status and pressure. Ukrainian statements do not clarify whether the pipeline was active or decommissioned, or what safeguards were in place, so that remains an open concern for both local populations and operators.
One sentence captures the broader shift: in a war of entrenched lines and fortified villages, control of the underground—pipes, tunnels, culverts—becomes a new flank. Commanders who ignore what lies below ground risk being outmaneuvered by those willing to take that gamble.
What to watch next is whether Russia adapts by increasing surveillance and fortification of underground infrastructure near the front, and whether Ukrainian units attempt similar operations along other axes. Satellite imagery and further battlefield reporting may indicate if Russian forces have repositioned supply routes or command nodes around Kupiansk in response, giving a clearer sense of how disruptive Operation Veles actually was.
Sources
- OSINT