https://history.army.mil/documents/Korea/2id-KW-IP.htm
"Suffering from very heavy casualties and the loss of most of its equipment, the 2d Division was placed in reserve on 1 December"
https://www.koreanwar2.org/kwp2/usa/2id/001/USA_2ID_050003a.pdf
“The casualtie for the month totalled over 5,000 men, of which approximately 90% occurred durins the period from 25-30 November. I ' Losses in equipment rifere also extremely heavy. The 2d Division had met, the full impact of an overwhelming Chinese force, had slowed an attack which might have destroyed the Eighth Army, and withdrawn with its basic organization intact. It now needed a period of rest to regroup and resupply, and to rest the men who had served so valiantly. ”