Siege of Khiva
1924 CE.
Shown on the map at 41.378°, 60.364°.
The Siege of Khiva was a military operation from 19 January to 19 August 1924 by Basmachi insurgents to conquer the city of Khiva from the Red Army.
Text from the Wikipedia article Siege of Khiva (1924), licensed CC BY-SA 4.0.