Soviet submarine L-4

L-4 was one of six Series II double-hulled Leninets or L-class minelayer submarines built for the Soviet Navy during the early 1930s. Commissioned in 1933 into the Black Sea Fleet, she had was initially named Garibaldets and was renamed L-4 when the navy decided to use alphanumeric names for submarines in 1934. The submarine was refitted when the Axis Powers invaded the Soviet Union in June 1941 (Operation Barbarossa) and became operational two months later. L-4 was primarily used as a minelayer during the war, but did make seven supply runs to besieged Sevastopol in 1942. Only one of her torpedo attacks was successful, damaging an oil tanker in 1944.

After the war she was renamed B-34 in 1949 and became a training ship in 1953. The submarine was stricken from the navy list three years later and subsequently scrapped.