 The North Korean People 's Army , meanwhile , was preparing for a September offensive by capturing the Miryang and Samnangjin areas to cut off the US 2nd Division 's route of supply and withdrawal between Daegu and Busan . However , the North Koreans were unaware that the US 2nd Infantry Division had recently replaced the US 24th Infantry Division in positions along the Naktong River . Consequently , they expected lighter resistance ; the 24th troops were exhausted from months of fighting but the 2nd Division men were fresh and newly arrived in Korea . They had only established their lines shortly before the North Koreans began the attack . The North Koreans began crossing the Naktong River under cover of darkness at certain points . On the southern @-@ most flank of the US 9th Infantry Regiment river line , just above the junction of the Nam River with the Naktong , A Company of the 1st Battalion was dug in on a long finger ridge paralleling the Naktong that terminates in Hill 94 at the <unk> ferry site . The river road from Namji @-@ ri running west along the Naktong passes the southern tip of this ridge and crosses to the west side of the river at the ferry . A small village called Agok lay at the base of Hill 94 and 300 yards ( 270 m ) from the river . A patrol of tanks and armored vehicles , together with two infantry squads of A Company , 9th Infantry , held a roadblock near the ferry and close to Agok . On the evening of August 31 , A Company moved from its ridge positions overlooking Agok and the river to new positions along the river below the ridge line . 
