 Despite these losses the U.S. 21st Infantry Regiment was praised for its efforts to defend Chochiwon and Chonui . Roy Appleman , a historian for the U.S. Army called it " the most impressive performance yet of American troops in Korea . " Indeed , the regiment was able to successfully delay North Korean forces for three days in the fighting , despite suffering heavily in casualties and equipment losses , and in doing so the action bought enough time for the rest of the 24th Infantry Division to set up defenses around Taejon . The 21st Infantry Regiment subsequently joined the 34th Infantry Regiment and the 19th Infantry Regiment in setting up positions along the Kum River near Taejon , and the entire 24th Infantry Division would make its stand there during the Battle of Taejon over the next week . In that fight , the division would be overrun and forced to retreat again . However , the delaying actions of the division would give the U.S. forces in Pusan time to set up the Pusan Perimeter , where the North Korean and UN forces would fight for several months in the Battle of Pusan Perimeter , eventually defeating the North Korean Army . 
