1941 – World War II: German troops reach Leningrad, leading to the siege of Leningrad
. The Siege of Leningrad was a prolonged military operation undertaken by the German Army Group North against Leningrad—historically and currently known as Saint Petersburg—in the Eastern Front theatre of World War II. The siege started on 8 September 1941, when the last road to the city was severed. Although the Soviets managed to open a narrow land corridor to the city on 18 January 1943, the siege was finally lifted on 27 January 1944, 872 days after it began. It was one of the longest and most destructive sieges in history and overwhelmingly the most costly in terms of casualties. The 872 days of the siege caused unparalleled famine in the Leningrad region through disruption of utilities, water, energy and food supplies. This resulted in the deaths of up to 1,500,000 soldiers and civilians and the evacuation of 1,400,000 more, mainly women and children, many of whom died during evacuation due to starvation and bombardment. Piskaryovskoye Memorial Cemetery alone in Leningrad holds half a million civilian victims of the siege. Economic destruction and human losses in Leningrad on both sides exceeded those of the Battle of Stalingrad, the Battle of Moscow, or the atomic bombings of Hiroshima and Nagasaki. The siege of Leningrad is the most lethal siege in world history, and some historians speak of the siege operations in terms of genocide, as a "racially motivated starvation policy" that became an integral part of the unprecedented German war of extermination against populations of the Soviet Union generally.