Story perspectives

Ukraine Strikes $400M Russian Submarine with Drones

12/15/2025

Summary

Story summary

On December 15, 2025, the Ukraine Security Service (SBU) reported a strike on a Russian Varshavyanka-class submarine with "Sub Sea Baby" drones, inflicting damage and rendering the vessel inoperable.
The submarine was valued at $400 million and carried four Kalibr launchers used in attacks on Ukraine.
Russia's Defense Ministry denied the claim, saying no damage occurred to its fleet.
The incident highlights Ukraine's intensified naval campaign amid the conflict.

History

Historical Context

Russia's Varshavyanka-class submarines, introduced in 2010, are valued at approximately $400 million each and are equipped with Kalibr cruise missiles. These submarines have played a crucial role in Russia's naval strategy since the 2014 annexation of Crimea, contributing to ongoing maritime tensions with Ukraine. The recent strike on a Varshavyanka-class submarine highlights Ukraine's evolving military tactics amid the conflict.

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Story summary

On December 15, 2025, the Ukraine Security Service (SBU) reported a strike on a Russian Varshavyanka-class submarine with "Sub Sea Baby" drones, inflicting damage and rendering the vessel inoperable.
The submarine was valued at $400 million and carried four Kalibr launchers used in attacks on Ukraine.
Russia's Defense Ministry denied the claim, saying no damage occurred to its fleet.
The incident highlights Ukraine's intensified naval campaign amid the conflict.

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