Changjin Reservoir
Changjin County, North Korea
Lake Changjin, known widely in the West as Chosin Reservoir, is a lake located in Changjin County, North Korea. It is most famously known for being the site of the Battle of the Chosin Reservoir, which was an important battle in the Korean War.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).