Siege of Rogatica
1941 CE.
Shown on the map at 43.799°, 19.004°.
The siege of Rogatica was a joint attack of Partisan and Chetnik rebel forces on Rogatica, then held by the Independent State of Croatia. The siege continued between 13 and 24 October 1941.
Text from the Wikipedia article Siege of Rogatica (1941), licensed CC BY-SA 4.0.