Battle of Kızıl Tepe
1877 CE.
Shown on the map at 40.617°, 43.100°.
The Battle of Kizil-tepe (Turkish: Kızıltepe Muharebesi) was fought on August 25, 1877, between the Russian Empire and the Ottoman Empire. The Russian were attempting to besiege Kars. The Ottomans, vastly superior in numbers, successfully lifted the siege. The Ottoman forces were supported by the Polish legion in Turkey.
Text from the Wikipedia article Battle of Kızıl Tepe, licensed CC BY-SA 4.0.