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Battle of the Ch'ongch'on River, 1950: the Chinese counterstroke in Korea

Korean War · 25 November to 1 December 1950 · United Nations vs China · ~6 min read · Updated October 2026

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Black and white photograph of four American soldiers in steel helmets in a hilltop foxhole, one pointing ahead, behind a machine gun with an ammunition belt running from a metal box.

A machine gun team of the US 2nd Infantry Division north of the Ch'ongch'on River, 20 November 1950. US Army photograph, National Archives, via Wikimedia Commons, public domain

At a glance

United Nations Command (US Eighth Army)Lt. Gen. Walton H. Walker; Maj. Gen. Laurence B. Keiser, 2nd Infantry Division
vs
China (Chinese People's Volunteers)Li Tianyu, XIII Army Group (38th, 39th, 40th and 50th Armies and others)
Dates
25 November to 1 December 1950
Location
The Ch'ongch'on River valley and Kunu-ri, northwestern North Korea
War
Korean War
Forces
Eighth Army with US, South Korean, British and Turkish formations against the Chinese XIII Army Group; Eighth Army intelligence had expected about 48,000 Chinese (Mossman)
Losses
US 2nd Infantry Division alone: 4,940 battle casualties in the last half of November, about 4,500 of them after 25 November, and 64 guns (Mossman)
Outcome
Chinese victory; the Eighth Army withdrew south toward Pyongyang
Quick answer

What was the Battle of the Ch'ongch'on River?

The Chinese counteroffensive that stopped the UN advance to the Yalu in November 1950. On the night of 25 November China's XIII Army Group struck the US Eighth Army along the Ch'ongch'on River in North Korea, broke the South Korean II Corps on its right, and forced a general retreat. The US 2nd Infantry Division, covering it, lost about a third of its strength in a week of fighting that ended on the road south of Kunu-ri.1

On 24 November 1950 the US Eighth Army attacked north from the Ch'ongch'on River toward the Chinese border. There was even speculation, the Army's official history records, that UN forces would reach the border and end the war by Christmas. Within a week the Eighth Army was in full retreat. The fight along the Ch'ongch'on and the ambush of the 2nd Infantry Division south of Kunu-ri turned the war around.2

The last push to the Yalu

General Walton Walker expected to meet Chinese troops, but he did not know where they were. His intelligence officer traced two possible defense lines and estimated that the Eighth Army would meet some 48,000 Chinese and several North Korean units. Walker spread his forces evenly: the I Corps in the west, the IX Corps in the center with the 25th and 2nd Infantry Divisions and the Turkish brigade, and the South Korean II Corps on the right, in the mountains around Tokch'on.3

The first two days went well. Chongju was found empty, resistance was light, and casualties were not heavy in any corps. Four miles from Unsan, an American task force even recovered thirty soldiers of the 8th Cavalry whom the Chinese had captured earlier in November and released, most of them wounded and frostbitten.4

The night of 25 November

That night the Chinese struck. The commander of the XIII Army Group, Li Tianyu, aimed his main blow at the IX Corps and above all the 2nd Division, using his 39th and 40th Armies. Chinese infantry waded the cold Ch'ongch'on to hit a battalion of the 23rd Infantry and an artillery battalion; along the 9th Infantry's front, rifle companies were surrounded and fought their way out in pieces.5

The heaviest blow fell farther east. On 26 November the South Korean II Corps gave way, its regiments pulling back in confusion as broken communications defeated every attempt to form a new line. That left the 2nd Division's right flank open, and the Chinese 38th Army began to swing west toward it. Walker sent the Turkish brigade east from Kunu-ri to close the gap; it fought the 38th Army at Wawon and Sinnim-ni and was badly mauled.6

Retreat

By 28 November, with Chinese attacks all along his line, Walker had ordered his corps back. That morning General MacArthur had told the Joint Chiefs of Staff that they faced an entirely new war, and that night he summoned Walker and the X Corps commander to Tokyo to plan the shift to the defensive; the Navy's historian later judged the statement correct except for the word entirely. On 29 November Walker called a general withdrawal to a line from Sukch'on to Sunch'on and Songch'on, twenty miles south of Kunu-ri.7

The 2nd Division was the last to go. Its main road south ran from Kunu-ri to Sunch'on through a quarter-mile pass, and the Chinese had already put a fire block across it. On the morning of 30 November its general decided to rush the column down that road, believing the block was small.8

The gauntlet south of Kunu-ri

It was not small. Chinese troops on the hills above the road, with perhaps thirty or forty machine guns and about ten mortars, raked the column for miles. Wrecked vehicles blocked the road, and every truck that stalled held up those behind it. Fighter-bombers answered the division's call for air support and struck the hills around the pass with napalm and machine-gun fire; the Navy's history notes that Navy and Marine aircraft were among those sent to help. Some units got through in order; others, including the rear of the 9th Infantry, abandoned their guns and vehicles and made for Sunch'on across country. One artillery battalion, Mossman records, cleared the far end with the loss of 35 men and with 10 howitzers and 53 vehicles left strewn along the road behind it.9

On 1 December the division counted its losses. Its battle casualties for the last half of November came to 4,940, about 4,500 of them since 25 November, one third of the 15,000 men it had on 15 November. It had lost 64 artillery pieces, hundreds of trucks and nearly all its engineer equipment, and it was sent south of Pyongyang to rebuild.10

What the Ch'ongch'on decided

The fight on the Ch'ongch'on ended the hope of reaching the Yalu. As December opened the remnants of the 2nd Division had reached Sunch'on and the Eighth Army was disengaging toward Pyongyang; by Christmas, the Navy's history notes, it was almost clear of North Korea. In the east, at the same moment, the Marines and soldiers of X Corps were fighting their own battle at the Chosin Reservoir.11

Notes

A number in the text points to a note; each note names the works that paragraph draws on, listed in full under Sources.

  1. Billy C. Mossman, “The Battle of the Ch'ongch'on”; Billy C. Mossman, “Disengagement in the West”; James A. Field Jr., “Chapter 9”. ↩
  2. Billy C. Mossman, “The Mission”; Billy C. Mossman, “Disengagement in the West”; James A. Field Jr., “Chapter 9”. ↩
  3. Billy C. Mossman, “The Battle of the Ch'ongch'on”; James A. Field Jr., “Chapter 9”. ↩
  4. Billy C. Mossman, “The Battle of the Ch'ongch'on”. ↩
  5. Billy C. Mossman, “The Battle of the Ch'ongch'on”. ↩
  6. Billy C. Mossman, “The Battle of the Ch'ongch'on”; James A. Field Jr., “Chapter 9”; Billy C. Mossman, “Disengagement in the West”. ↩
  7. Billy C. Mossman, “The Battle of the Ch'ongch'on”; James A. Field Jr., “Chapter 9”; Billy C. Mossman, “The Battle of the Changjin Reservoir”; Billy C. Mossman, “Disengagement in the West”. ↩
  8. Billy C. Mossman, “Disengagement in the West”. ↩
  9. Billy C. Mossman, “Disengagement in the West”; James A. Field Jr., “Chapter 9”. ↩
  10. Billy C. Mossman, “Disengagement in the West”. ↩
  11. Billy C. Mossman, “Disengagement in the West”; James A. Field Jr., “Chapter 9”; Billy C. Mossman, “Redeployment South”; Billy C. Mossman, “The Battle of the Changjin Reservoir”. ↩

Sources

  • Billy C. Mossman, Ebb and Flow, November 1950 to July 1951, US Army Center of Military History, 1990, chapter IV (online edition, Korean War Online), “The Battle of the Ch'ongch'on”
  • Billy C. Mossman, Ebb and Flow, US Army Center of Military History, 1990, chapter VI (online edition, Korean War Online), “Disengagement in the West”
  • James A. Field Jr., History of United States Naval Operations: Korea, Naval History and Heritage Command, “Chapter 9: Retreat South”
  • Billy C. Mossman, Ebb and Flow, US Army Center of Military History, 1990, chapter I (online edition, Korean War Online), “The Mission”
  • Billy C. Mossman, Ebb and Flow, US Army Center of Military History, 1990, chapter V (online edition, Korean War Online), “The Battle of the Changjin Reservoir”
  • Billy C. Mossman, Ebb and Flow, US Army Center of Military History, 1990, chapter VIII (online edition, Korean War Online), “Redeployment South”

Frequently asked questions

When was the Battle of the Ch'ongch'on River?

From 25 November to 1 December 1950. The Chinese attacked on the night of 25 November, a day after the Eighth Army had begun its offensive north from the river.

Who fought on the Ch'ongch'on?

The US Eighth Army under General Walton Walker, with South Korean, British and Turkish forces, against China's XIII Army Group under Li Tianyu.

What was the gauntlet at Kunu-ri?

The road south from Kunu-ri to Sunch'on, where on 30 November 1950 the US 2nd Infantry Division drove its column through miles of Chinese machine gun and mortar fire from the hills on both sides.

How many men did the 2nd Infantry Division lose?

The US Army's official history gives 4,940 battle casualties for the last half of November, about 4,500 of them after 25 November, a third of the division's strength, and 64 guns lost.

What was the result of the battle?

A Chinese victory. The Eighth Army abandoned its advance to the Yalu and withdrew south past Pyongyang and by Christmas had almost left North Korea.

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