Battle of Tolvajärvi
1939 CE.
Shown on the map at 62.288°, 31.488°.
The Battle of Tolvajärvi ([ˈtol.ʋɑˌjær.ʋi]; Finnish: Tolvajärven–Ägläjärven taistelu, Russian: Битва при Толваярви) began on 12 December 1939 and continued for about a week and a half, between Finland and the Soviet Union. It was the first large offensive victory for the Finns in the Winter War. The battle took place on the territory of so-called Ladoga Karelia (Finnish: Laatokan Karjala) which today is part of the Republic of Karelia in Russia.
Text from the Wikipedia article Battle of Tolvajärvi, licensed CC BY-SA 4.0.