The 872-day siege of Leningrad, which began on September 8, 1941, and ended on January 27, 1944, was one of the longest and most destructive sieges in history, resulting in significant casualties and earning the title of probably the costliest siege in history.
War in Russia: The Siege of Leningrad
The Siege of Leningrad commenced on September 8, 1941, as German forces severed the city's final terrestrial supply line.