Military & Defense

Ukraine doesn't have much of a navy, but it's found a way to hunt down the 'weakest links' in Russia's critical sea supply lanes, UK intel says

Russia's Black Sea Fleet warships take part in the Navy Day celebrations in the port city of Novorossiysk on July 30, 2023.
Russia's Black Sea Fleet warships take part in the Navy Day celebrations in the port city of Novorossiysk on July 30, 2023. Stringer/AFP via Getty Images
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Ukraine doesn't have a naval fleet, but it's filling the gap with dangerous drones that terrorize Russian ships and disrupt critical sea supply lanes, especially in the Black Sea.

On August 4, Russian merchant tanker Sig was "attacked and disabled near the Kerch Strait," the UK Ministry of Defense said in a Wednesday update. The UK reports adds to claims the attack was done by a uncrewed surface vessel just days after a similar incident involving the Olenegorsky Gornyak warship, which was badly damaged by a first-person view drone ship the same day. 

Although Sig was a civilian vessel, UK intel says it's "long been contracted to ship fuel and military supplies between Russia and Syria," and Moscow's forces in Syria have relied on Sig and other civilian vessels since Russia's full-scale invasion in Ukraine in February 2022. Russian warships have repeatedly fired missiles into Ukraine, and now are threatening merchant ships that enter Ukraine's ports.

It's the latest incident involving Ukrainian sea drones hitting vital Russian naval targets, weakening sea supply lanes and proving Kyiv to be a scrappy, formidable naval force while lacking an actual fleet beyond some patrol boats.

"The attacks show that USV operations are increasingly a major component of modern naval warfare and can be turned against the weakest links of Russia's sea supply lanes," the UK intel update said.

Ukraine has made the development of sea drones a priority, even crowdfunding for what they call "the formation of the world's first naval fleet of drones." 

Part of the success of Ukraine's USVs has been their relatively inexpensive manufacturing and use. An expert previously told Insider the remotely operated, cheap-but-effective waterborne drones give Ukraine an "asymmetric advantage," stressing Russian defenses and resources. The drones also pack a punch, as seen in the damage done to the Olenegorsky Gornyak landing ship, and can be hard for Russian guns and missiles to hit if they arrive in a fleet or can't be spotted at night. 

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Chris Panella
Chris Panella is a defense reporter for Business Insider. He covers technological transformations in the US military with focuses on US military modernization, US Army transformation, and emerging technologies like artificial intelligence and drones. Globally, Panella reports on China's military and Taiwan. Panella has embedded with the Army in Alaska, interviewed special operators learning to fly drones, and flown with US Coast Guard helicopters practicing drug interdictions. If you have a tip related to these areas or broader defense coverage, Panella can be reached at cpanella@bjinnox.com or on Signal at cpanella.85.