Battle of Kiauneliškis
1945 CE.
Shown on the map at 55.277°, 25.862°.
The Battle of Kiauneliškis was fought on March 11–13, 1945 between the Lithuanian partisans and Soviet forces. The Lithuanians were entrenched in two large bunkers and refused to surrender. After three days of fighting, both bunkers were destroyed with heavy casualties on both sides.
Text from the Wikipedia article Battle of Kiauneliškis, licensed CC BY-SA 4.0.