The Battle at Lake Changjin

The Battle at Lake Changjin
source
Conflict	The Battle at Lake Changjin
Partof	Korean War
Date	November 27 – December 13, 1950
Place	Chosin Reservoir, North Korea
Result	See Aftermath
Combatant1	United Nations Command, • United States, • United Kingdom
Combatant2	China, • People's Volunteer Army
Commander1	Edward Almond, Oliver P. Smith
Commander2	Song Shilun
Strength1	~30,000
Strength2	~120,000
Casualties1	US sources: 1,029 killed, 4,894 missing, 4,582 wounded, Chinese estimate: 13,900 non-battle casualties
Casualties2	Chinese estimate: 19,202 battle casualties, US estimate: 35,000–60,000

The Battle at Lake Changjin. Known in the West as the Battle of Chosin Reservoir, it was a pivotal military engagement during the Korean War. Fought in the harsh winter of 1950 around the Chosin Reservoir, the battle pitted United Nations Command forces, primarily the United States 1st Marine Division and elements of the United States Army 7th Infantry Division, against the People's Volunteer Army of China. The extreme cold and difficult terrain were as formidable an enemy as the combatants themselves, resulting in a brutal campaign of attrition and maneuver.

Background

Following the successful Inchon Landing in September 1950, United Nations Command forces under General Douglas MacArthur advanced rapidly north, aiming to unify Korea. As United States and Republic of Korea troops approached the Yalu River, the border with China, the Chinese Communist Party leadership, fearing an American presence on its frontier, secretly ordered the People's Volunteer Army to intervene. Under the command of Peng Dehuai, Chinese forces crossed into North Korea in late October, initiating the Second Phase Offensive. The X Corps, commanded by Major General Edward Almond, was advancing in a dispersed manner in northeastern Korea when intelligence failures led to a catastrophic encounter with massive Chinese formations near the Chosin Reservoir.

Opposing forces

The UN forces, designated X Corps, were centered on the U.S. Marine 1st Marine Division under Major General Oliver P. Smith, bolstered by the 31st Infantry Regiment of the 7th Infantry Division and a battalion of British Royal Marines from 41 Commando. Total strength was approximately 30,000 troops. They faced the 9th Army Group of the People's Volunteer Army, commanded by Song Shilun, comprising the 20th Army, 26th Army, and 27th Army. This force, numbering around 120,000, was lightly equipped but highly motivated, though it suffered from severe logistical shortcomings and a lack of cold-weather gear, despite having gained experience in the Chinese Civil War.

Battle

The battle commenced on November 27, 1950, when Chinese forces launched a massive surprise attack, surrounding the UN troops in the mountainous terrain around the reservoir. Key actions included the defense of Yudam-ni by the 5th and 7th Marines, the desperate holding action at East Hill by elements of the 31st Infantry Regiment, and the famous breakout from Hagaru-ri. Facing constant attacks and temperatures plunging to −35 °F (−37 °C), UN forces conducted a fighting withdrawal south along the Main Supply Route to the port of Hungnam. The Third Battle of Seoul was concurrently unfolding to the west. The 1st Marine Division, famously declaring they were "attacking in a different direction," fought a disciplined retreat under extreme duress, with critical air support provided by United States Air Force and United States Navy aircraft from carriers like the USS Leyte (CV-32).

Aftermath

By December 11, UN forces had broken through Chinese encirclements and reached Hungnam, where they were successfully evacuated by sea in the Hungnam evacuation, a large-scale amphibious operation overseen by James H. Doyle. While the People's Volunteer Army succeeded in expelling X Corps from North Korea and inflicting heavy casualties, it failed in its strategic aim to destroy the 1st Marine Division. Chinese casualties were catastrophic, with entire divisions rendered combat-ineffective due to battle losses and frostbite. The battle decisively halted the UN advance and changed the character of the Korean War, leading to a stalemate that would eventually result in the Korean Armistice Agreement. The retreat from Chosin Reservoir is remembered as both a defeat and a masterful tactical withdrawal under impossible conditions.

Legacy

The Battle at Lake Changjin holds a profound place in military history and national memory. In the United States, it is a cornerstone of United States Marine Corps lore, epitomizing resilience and earning participants the nickname "The Chosin Few." The People's Liberation Army commemorates it as a symbol of heroic sacrifice and a victory that checked American power, a narrative prominently featured in Chinese patriotic education and films like The Battle at Lake Changjin (film). The battle is studied for its lessons in winter warfare, logistics, and the perils of ignoring intelligence. Memorials, such as the Korean War Veterans Memorial in Washington, D.C., and numerous unit reunions ensure its legacy endures for veterans of both sides. Category:Korean War Category:Battles of the Korean War Category:1950 in Korea