 Aided by air strikes , U.S. Army units were able to inflict substantial damage on the North Korean armor and other vehicles , but were overwhelmed by North Korean infantry . The two understrength U.S. battalions fought in several engagements over the three @-@ day period and suffered massive losses in personnel and equipment , but were able to delay the North Korean forces for several days , allowing the remainder of the 24th Infantry Division to set up blocking positions along the Kum River near the city of Taejon . 
