Battle of Nietjärvi
1944 CE.
Shown on the map at 61.615°, 31.491°.
The Battle of Nietjärvi (15–17 July 1944) was part of the Continuation War between Finland and the Soviet Union, which occurred during World War II. The battle ended in a Finnish victory.
Text from the Wikipedia article Battle of Nietjärvi, licensed CC BY-SA 4.0.