Battle of Kollaa
1939 CE.
Shown on the map at 62.028°, 32.256°.
The Battle of Kollaa was fought from 7 December 1939 to 13 March 1940 in Ladoga Karelia, Finland, as a part of the Soviet-Finnish Winter War.
Text from the Wikipedia article Battle of Kollaa, licensed CC BY-SA 4.0.