 The regiment subsequently retreated to Chonan , where , the next night the 3rd Battalion was heavily engaged in another delaying action . The 34th Infantry lost its commander , Colonel Robert R. Martin as well as two thirds of its 3rd Battalion 's strength . The exhausted 34th Infantry Regiment retreated to the Kum River , near the 24th Infantry Division 's headquarters . The 24th Infantry Division would make one final delaying action before it would be forced to make its final stand around Taejon , the only major defensible city left before the Pusan Perimeter being established by the Eighth Army . 
