Battle of Onjong

40°6′33″N 125°53′47″E / 40.10917°N 125.89639°E / 40.10917; 125.89639 (Onjong-ri)

Battle of Onjong
Part of the Korean War
Map of Chinese intervention, 25 October 25 – 1 November 1950
Date 25–29 October 1950 Location Near Onjong, North Korea Result Chinese victory
Belligerents
China	South Korea
Commanders and leaders
Peng Dehuai Han Xianchu Wen Yuchen (40th Corps)[1]	Yu Jae-hung (II Corps) Kim Jong-oh (6th Div)[2] Go Geun Hong (10th Rgt)
Units involved
40th Corps[nb 1] 118th Division 119th Division 120th Division	ROK II Corps 6th Infantry Division 10th Infantry Regiment
Casualties and losses
Unknown	Unknown

The Battle of Onjong (Korean: 온정리 전투), also known as the Battle of Wenjing (Chinese: 温井战斗; pinyin: Wēn Jǐng Zhàn Dòu), was one of the first engagements between Chinese and South Korean forces during the Korean War. It took place around Onjong in present-day North Korea from 25 to 29 October 1950. As the main focus of the Chinese First Phase Offensive, the People's Volunteer Army (PVA) 40th Corps conducted a series of ambushes against the Republic of Korea Army (ROK) II Corps, effectively destroying the right flank of the United States Eighth Army while stopping the UN advance north toward the Yalu River.

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