 From 21 : 30 until shortly after midnight the NK 9th Division crossed the Naktong at a number of places and climbed the hills quietly toward the 9th Infantry river line positions . Then , when the artillery barrage preparation lifted , the North Korean infantry were in position to launch their assaults . These began in the northern part of the regimental sector and quickly spread southward . At each crossing site the North Koreans would overwhelm local UN defenders before building pontoon bridges for their vehicles and armor . 
 From 21 : 30 until shortly after midnight the NK 9th Division crossed the Naktong at a number of places and climbed the hills quietly toward the 9th Infantry river line positions . Then , when the artillery barrage preparation lifted , the North Korean infantry <a href='uninflect' title='1'><mark>were</mark></a> in position to launch their assaults . These began in the northern part of the regimental sector and quickly spread southward . At each crossing site the North Koreans would overwhelm local UN defenders before building pontoon bridges for their vehicles and armor . 
From 21 : 30 untill shortly after midnight da NK 9th Division crossed the Naktong at a number of places and climbed tdahills quietly toward thdath Infantry river line positions . Then , when thedatillery barrage preparation lifted , the North Korean infantry was in position to launch their assaults . These began in the northern part of the regimental sector and quickly spread southward . At each crossing site the dath Koreans would overwhelm local UN defenders before building pontoon bridges for their vehicles and armor .