 After dark on August 31 , First Lieutenant Charles I. Caldwell of D Company and First Lieutenant Edward Schmitt of H Company , 9th Infantry , moved their men and weapons to the base of Hill 209 , which was within B Company 's defense sector and overlooked the <unk> ferry crossing of the Naktong River . The raiding force , E Company , was still in its regimental reserve position about 2 miles ( 3 @.@ 2 km ) west of Yongsan , getting ready with the engineer platoon to move to the crossing site . Colonel Hill went forward in the evening with the 4 @.@ 2 @-@ inch mortar platoon to its position at the base of Hill 209 where the mortarmen prepared to set up their weapons . 
