 At dawn September 1 , Keiser at 2nd Division headquarters in <unk> @-@ ni , 7 miles ( 11 km ) east of Yongsan on the Miryang road , felt his division was in the midst of a crisis . The massive North Korean attack had made deep penetrations everywhere in the division sector except in the north in the zone of the 38th Infantry . The NK 9th Division had effected major crossings of the Naktong at two principal points against the US 9th Infantry ; the NK 2nd Division in the meantime had made three major crossings against the US 23rd Infantry ; and the NK 10th Division had begun crossing more troops in the Hill 409 area near Hyongp 'ung in the US 38th Infantry sector . At 08 : 10 Keiser telephoned Eighth Army headquarters and reported the heaviest and deepest North Korean penetrations were in the 9th Infantry sector . 
