Starting tonight, the operation of Ukraine's Unmanned Systems Forces (USF) has expanded beyond the Baltic Sea and spread to the Black Sea. Another 20 tankers from Russia's shadow fleet came under attack — this is part of a larger campaign that has already hit 136 vessels in 10 days.
What is happening
The shadow fleet is several hundred tankers that Russia uses to circumvent Western sanctions on oil exports. The vessels operate under third-country flags, are insured through opaque schemes, and physically transport Russian money from oil fields to the war budget. Without this logistics chain, Western sanctions pressure would be significantly more effective — but that is precisely why it has so far produced fewer results than expected.
The USF is attacking this chain directly. According to Ukrainian command, the operation began in the Baltic Sea and over 10 days hit 136 fleet units. The expansion to the Black Sea is a logical next step: a significant portion of oil from Novorossiysk passes through it.
Why Crimea is the chokepoint
The Black Sea route is critically dependent on the Kerch Strait. Vessels traveling from Novorossiysk to international markets are physically forced to pass near the Crimean coast. This makes the route vulnerable — and that is why the Ukrainian side characterizes Crimea as a point through which systematic pressure can be applied to Russian oil logistics.
"Moscow will fall through Crimea" — this thesis is not new in Ukrainian military discourse, but now it is acquiring concrete operational meaning: not merely blocking the Kerch Bridge or military supplies, but striking the commercial traffic that finances the war.
The real conflict of the operation
Here lies a fundamental question that remains open for now. Strikes on tankers in neutral or foreign waters are a legally and diplomatically complex zone. Part of the shadow fleet is not formally Russian property: they are registered under shell companies in the UAE, Turkey, Ghana. An attack on such a vessel is potentially an incident with a third country, not Russia.
How Ukraine is building a legal framework for these operations and whether there are publicly stated criteria for target selection remains undisclosed. This does not make the operation illegitimate, but it means that answers to these questions are important for the long-term support of the campaign by partners.
Scale and limits
136 vessels in 10 days is a significant figure, if independently confirmed. For comparison: according to estimates from Kpler and Windward, Russia's shadow fleet numbers between 400 and 600 active tankers. This means the operation has already affected a quarter or more of the total — if counting only active vessels and if the USF data is accurate.
Verification so far is partial. Satellite imagery and port data could confirm or refute the scale in the coming weeks — as damaged vessels should appear (or fail to appear) at their destination ports.
If the campaign does restrict the flow through the Black Sea oil corridor — how quickly will this be reflected in Russia's revenues, and will the West manage to use this window to strengthen sanctions pressure before the fleet reroutes?
