Biggest Russian submarine on a boat going thru Arctics
Russian submarines are prowling around vital undersea cables. It’s making NATO nervous. - December 22, 2017. The Russian submarine Dmitry Donskoy, the world’s largest in active service, arrives at Kronstadt Navy base, outside St. Petersburg, in July.
Remains of the Russian attack submarine Kursk She was participating in the largest naval exercises since the fall of the Soviet Union. She was about to fire a pair of inert torpedoes when she blew up and sank to the bottom of the Barents Sea.