U.S. Army and Marines serving as U.N. troops, were positioned on two sides of a … North Korea is divided through the center by the impassable Taebaek Mountains, which separated the UN forces into t… The Map Room. Shi-Lun’s for… This map shows the Korean War Battle of the Chosin Reservoir in North Korea, November 27 to December 11, 1950. The name Chosin is the Japanese pronunciation of the Korean place name Changjin, and the name stuck due to the outdated Japanese maps used by UN forces. The Chinese forces involved in the battle were the 9th Army Group, which was commanded by General Song Shi-Lun.

Chosin Reservoir is a man-made lake located in the northeast of the Korean peninsula. Return to Main Page United Nations (UN) forces advanced rapidly into North Korea with the intention of reuniting North and South Korea before the end of 1950.
Chosin Reservoir was the first major engagement in the Korean War between Chinese and American forces.

"Chosin" is the Japanese pronunciation of the Korean name, "Changjin". The Battle of Chosin Reservoir, also known as the Chosin Reservoir Campaign or the Changjin Lake Campaign (Korean: 장진호 전투(長津湖戰鬪); Chinese: 长津湖战役; pinyin: Cháng Jīn Hú Zhànyì), was a decisive battle in the Korean War. The Changjin Reservoir (Chosin) Click On One Of The Links Below For Map Image. The American forces at the Chosin Lake were composed of units from the US Army's X Corps, commanded by General Edward Almond, and the 1st Marine Division, commanded by General Oliver Smith. By mid-1950 after the successful landing at Inchon by the US X Corps and the subsequent destruction of the Korean People's Army, the Korean War appeared to be all but over. The battle's main focus was around the 78-mile (126 km) long road that connects Hungnamand Chosin Reservoir, which served as the only retreat route for the UN forces. Through these roads, Yudami-ni and Sinhung-ni, located at the west and east side of the reservoi…