Tensions are rising in the Strait of Hormuz, one of the world’s busiest sea routes. U.S. carrier strike groups now operate in these waters. Iran relies on its quiet “Black Hole” Kilo-class submarines.

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According to Ukraine’s Security Service, its underwater Sub Sea Baby drones were deployed to attack Russia’s Novorossiysk naval base, striking and disabling its Project 636.3 Kilo-class submarine. The ...

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Images released by the SBU on 15 December 2025 showed the moment of the purported UUV explosion, with the Kilo II submarine seen just to the left of the detonation. (Security Service of Ukraine) The ...

January 21, 2026: A month ago Ukraine used a new submarine version of their Sea Baby naval drone to attack a Russian Kilo Class submarine in the port of Novorossiisk on the east coast of the Black Sea ...

Ukraine's internal security agency said it used an underwater drone to damage a Russian submarine. The agency described the attack as a first, potentially signaling a new chapter in drone warfare.

Ukraine said Monday it carried out an underwater drone strike that critically damaged a Russian Kilo-class submarine docked in the port of Novorossiysk, marking the first known attack of its kind. The ...