Leningrad Oblast of two great lakes of the European Part of Russia, Lake Ladoga and Lake Onega. Its northeastern part, between the Gulf of Finland and Lake Ladoga, occupies the Karelian Isthmus. Some islands in the Gulf of Finland (including Kotlin, on which the city of Kronstadt has been built) and Lake Ladoga (including Konevets) also belong to the oblast. Much of the area of the oblast belongs to the drainage basin of the Neva, which is the only outflow of Lake Ladoga. Whereas the Neva, which flows to the Gulf of Finland (the city of Saint Petersburg is located in its
Finnish reconquest of Ladoga Karelia (1941) his forces further and the 1st Jaegar Brigade finished its 110 km long contested advance when it reached the shore of lake Ladoga at Koirinoja the next day. This also severed the connections between the Soviet forces in the area. While Talvela continued his advance both further east along the shore of the Lake Ladoga as well as further inland the Soviets had reorganized some of their forces and were rushing reinforcements to the east shore of Lake Ladoga. Soviet 452nd Motorized Infantry Regiment set up defensive positions around the town of Salmi; however advancing Finnish forces encircled the defenders