Battle of Chatkol
1953 CE.
Shown on the map at 38.330°, 127.410°.
The Battle of Chatkol (also known as the 55 Nights of Chatkol) was the name given to the series of skirmishes in early 1953 between United Nations Command (UN) and Chinese People's Volunteer Army (PVA) forces near the village of Chatkol at the centre of the Iron Triangle during the Korean War. The position was held by the Belgian UN contingent for 55 consecutive nights, during which time they came under heavy attack.
Text from the Wikipedia article Battle of Chatkol, licensed CC BY-SA 4.0.