Conflict28 September 1950
Recapture of Seoul
South Korean and UN forces retook Seoul, crossed the 38th parallel, took Pyongyang and pushed on to the Yalu River.
Naval Historical Center, Department of the Navy, Washington, D.C. · Public domain · Source
After landing at Incheon, South Korean and UN forces advanced on Seoul and retook it after fierce street fighting. Their supply lines cut, the North Korean forces on the Nakdong front collapsed and fled north.
South Korean troops crossed the 38th parallel first, on the east coast, on 1 October — now Armed Forces Day. UN forces followed, taking Pyongyang on 19 October, and on 26 October South Korean units reached Chosan on the Yalu. But by then Chinese troops had entered the war.