A little more than 24 hours ago an event occurred that was unprecedented in the history of war conflicts. It happens that there was only evidence from a video and statements of some involvedbut something else was missing that could certify that, indeed, an underwater drone had been able to disrupt a fortified port.
Now there are no longer any doubts: the satellites have revealed what happened.
Silent attack. The pfirst satellite images of the Ukrainian attack against a Russian submarine in Novorossiysk have confirmed that kyiv managed to introduce an unmanned underwater drone into one of the best protected ports in the Black Sea and detonate it a few meters from an Improved Kilo class diesel-electric submarine.
According to the Ukrainian Security Serviceit would be the first known attack against a Russian ship using an unmanned underwater vehicle and, potentially, the first successful use of this type of system as an anti-ship weapon in a real conflict. Although the exact extent of the damage remains impossible to determine with certainty, the simple fact of having reached the objective is already a major operational and psychological milestone.
What we know. Images obtained by commercial satellites confirm that the drone, named by Ukraine as Sub Sea Baby and until now unknown, detonated next to the stern of the submarine while it was moored to the dock. Part of the port infrastructure was clearly destroyed, consistent with the videos recorded from land and released by the SBU, where the explosion and damage to the dock can be seen.
The submarine, a Project 636.3 Varshavyankaremains in the same position as before the attack, while two other units that were nearby have been displaced, suggesting an immediate security reaction. However, there are no unequivocal signs of sinking, no visible emergency operations, or fuel spills, which suggests that, if there was damage, it could be below the waterline or be of a limited nature, something impossible to confirm with aerial images alone.
Satellite image after the attack, with a general view of the target submarine, inside the port, and another submarine moored outside. There are also other boats moored nearby
Official denials. As expected, the Russian Ministry of Defense has denied any damage to the submarine or personnel, and has released a video which supposedly shows the ship intact, although without offering a clear view of the stern and with large areas censored. Still, even that material suggests concrete rubble on the dock, coinciding with the recorded explosion.
The Black Sea Fleet has also rejected any operational impact, and Russian naval channels they have replicated that speechalthough without providing conclusive evidence. At this point, uncertainty is part of the information battlefield itself: Russia avoids recognizing vulnerabilities, while Ukraine emphasizes the audacity of the attack more than its physical effects.
The same area seen before the attack, in an image from December 11, 2025.
The gap in the defenses. Beyond the specific damage, the truly disruptive element of the attack is that the underwater drone managed to get through the defensive barriers of the port of Novorossiysk, designed to stop incursions Ukrainians. Those defenses had been deployed primarily in response to the surface drones that kyiv has used with notable success in the Black Sea, forcing Russia to adapt its port protection.
The use of a UUV introduces a new dimension to the Russian defensive problem and confirms a key dynamic of the conflict: each countermeasure generates a different technological response, in a constant race of adaptation.
Ukrainian ecosystem. He Sub Sea Baby It doesn’t come out of nowhere. Before this attack, Ukraine had already presented other underwater drones such as the Marichka, designed for kamikaze attacks against ships and maritime infrastructure, or the Toloka, of which fewer details are known.
It is not clear whether there is a direct relationship between these systems, but the pattern is evident: kyiv is cbuilding a portfolio of unmanned submarine capabilities, aware that Russian underwater dominance was one of the few areas where Moscow still maintained clear superiority.
The submarine as a target. The attack further confirms that the Black Sea Fleet remains a priority objective for Ukraine, especially its submarines Project 636 classcapable of throwing Kalibr cruise missiles regularly used against Ukrainian cities and infrastructure.
Sustained pressure from kyiv had already forced Russia to withdraw a large part of its fleet from Crimea to Novorossiysk, and it is not the first time that these submarines have been attacked: in September 2023the Rostov-on-Don turned out seriously damaged in Sevastopol during a combined attack with missiles and surface drones. At the beginning of the large-scale invasion, Russia had six submarines of this type: each lost or neutralized one has considerable strategic weight.
A message for Russia. Even if the submarine was not critically damaged, the attack has sent an unequivocal message: No Russian port is completely safe and naval warfare has entered a new phase, where underwater unmanned systems move from experiment to actual operational use. Other military powers, from United States to Chinacarefully observe a precedent that validates years of doctrinal development on UUVs as attack, reconnaissance and mining platforms.
In that sense, the Novorossiysk episode reinforces a already recurring idea in the conflict: the war in Ukraine is not only fought over territories, but functions as a brutal laboratory for the military technologies of the future, where each innovation is tested in real conditions and its lessons are studied in all the military capitals of the planet.
Image | VANTOR
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