United Nations troops advance in North Korea during the Battle of Chosin Reservoir of the Korean War.

United Nations troops advance in North Korea after the capture of Seoul during the Korean War. A group of UN soldiers search a PRC (People's Republic of China) soldier. A map of Korea highlights the port city of Hungnam in Korea. UN troops advance along snowy mountains and roads during the Battle of Chosin Reservoir. Gun crews load artillery guns with shells. UN soldiers eat and rest at the beach of Hungnam. They advance in Hungnam. Parachute supplies are dropped from airplanes for UN troops.