The Weapon Ukraine Used to Sink Russia's Last Warship in the Black Sea

Ukraine sank another Russian Black Sea Fleet warship using a combination of naval drones and missiles. Here is the specific operation and what it means for Russian maritime power in the region.

Ukraine's naval drone forces — operating in conjunction with Neptune anti-ship missiles and the specific intelligence support that has enabled Ukrainian maritime targeting throughout the conflict — executed the sinking of a Russian Project 22800 Karakurt-class corvette in the Black Sea in late March 2026, continuing a campaign of naval attrition that has effectively removed the Russian Black Sea Fleet as a meaningful offensive naval force.

The specific operation: Magura V5 autonomous surface vessels — Ukraine's domestically produced naval drones that have been responsible for multiple Russian warship losses — approached the corvette from the specific bearing that the vessel's defensive systems had the least coverage for, combining with a Neptune missile launched from Ukraine's Odessa Oblast coast in a coordinated attack that overwhelmed the corvette's point-defence systems.

The corvette had been providing naval gunfire support for Russian forces operating near Kherson Oblast and was one of the few remaining Project 22800 vessels that Russia had not already lost or withdrawn to Novorossiysk for protection. Its loss reduces Russia's remaining Black Sea combat power to a small number of submarines and the surface vessels that are now effectively confined to harbour or to positions east of Crimea where Ukrainian naval drone range is at its limit.

For the strategic picture: Russia's Black Sea Fleet, which had approximately 40 combat vessels at the beginning of the war, has been reduced through Ukrainian attacks to a fraction of that force — with the flagship Moskva sunk in 2022, multiple corvettes and supply vessels destroyed, and the remainder essentially denied operational access to the western Black Sea where their surface-to-surface missiles were most useful.

For Ukraine's security: the degradation of Russia's Black Sea naval power has significantly reduced the specific missile threat to Odessa and Mykolaiv that Russian cruise missiles fired from Black Sea positions represented in the conflict's earlier phases. It has also enabled Ukrainian grain exports — albeit at reduced rates — through a maritime corridor that Russian naval power would otherwise control.