Battle of Triangle Hill

Battle of Triangle Hill
Part of the Korean War
US Army 155mm howitzer firing on Triangle Hill
Date October 14 – November 25, 1952 Location North of Gimhwa-eup, Chorwon County, Korea Result Chinese victory on Triangle Hill; Both China and South Korea claim victory on Sniper Ridge
Belligerents
United Nations  Colombia  Ethiopia  South Korea  United States	China
Commanders and leaders
Mark Wayne Clark James Van Fleet Reuben E. Jenkins Wayne C. Smith Chung Il-kwon Asfaw Andargue Alberto Ruiz Novoa	Deng Hua Wang Jinshan Qin Jiwei Li Desheng Cui Jiangong
Units involved
7th Infantry Division 2nd Infantry Division 30th Infantry Regiment 2nd Kagnew Battalion Colombian Battalion	15th Corps 12th Corps
Strength
Infantry: Unknown Artillery: 288 guns Aircraft: 2,200+ sorties	Infantry: 50,000 Artillery: 133 guns, 24 rocket launchers AA Artillery: 47 guns
Casualties and losses
US: 365 killed 1,174 wounded 1 captured South Korea: 1,096 killed 3,496 wounded 97 missing Chinese estimation: 25,498	Chinese source: 4,838 killed 6,691 wounded UN estimation: 19,000

 United Nations

The Battle of Triangle Hill, also known as Operation Showdown or the Shangganling Campaign (Chinese: 上甘岭战役; pinyin: Shànggānlǐng Zhànyì), was a protracted military engagement during the Korean War. The main combatants were two United Nations infantry divisions, with additional support from the United States Air Force, against elements of the 15th and 12th Corps of the People's Republic of China. The battle was part of American attempts to gain control of "The Iron Triangle", and took place from October 14 – November 25, 1952.

The immediate American objective was Triangle Hill (38°19′17″N 127°27′52″E / 38.32139°N 127.46444°E / 38.32139; 127.46444Coordinates: 38°19′17″N 127°27′52″E / 38.32139°N 127.46444°E / 38.32139; 127.46444), a forested ridge of high ground 2 kilometers (1.2 mi) north of Gimhwa-eup near the Korean Demilitarized Zone (DMZ). The hill was occupied by the veterans of the People's Volunteer Army's 15th Corps. Over the course of nearly a month, substantial American and South Korean forces made repeated attempts to capture Triangle Hill and the adjacent Sniper Ridge. Despite clear superiority in artillery and aircraft, escalating American and South Korean casualties resulted in the attack being halted after 42 days of fighting, with Chinese forces regaining their original positions.

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