 Still farther northward in the zone of the US 38th Infantry the North Koreans were also active . After the North Korean breakthrough during the night of August 31 , <unk> had ordered the 2nd Battalion , 38th Infantry , to move south and help the 23rd Infantry establish a defensive position west of <unk> . In attempting to do this , the battalion found North Korean troops already on the ridges along the road . They had penetrated to Hill <unk> overlooking the 38th Infantry command post . This hill and Hill <unk> dominated the rear areas of the regiment . At 06 : 00 September 3 , 300 North Koreans launched an attack from Hill <unk> against the 38th Regiment command post . The regimental commander organized a defensive perimeter and requested a bombing strike which was denied him because the enemy target and his defense perimeter were too close to each other . But the Air Force did deliver rocket and <unk> strikes . 
