▁flow ▁of ▁cargo ▁con vo ys ▁during ▁ 5 ▁days ▁from ▁D + 3 ▁to ▁D + 7 , ▁" allow ing ▁an ▁initial ▁bu il dup ▁of ▁ 5 , 3 6 5 ▁tons ▁of ▁supplies ▁in ▁Ple iku ". ▁Later , ▁oper ational ▁units ▁with d rew ▁to ▁their ▁cam ps ▁during ▁D + 8 ▁and ▁D + 9 . ▁As ▁a ▁result ▁of ▁Operation ▁Th ầ n ▁Ph ong , ▁" the ▁con vo ys ▁trans f used ▁new ▁life ▁into ▁the ▁High lands . ▁Al ong ▁with ▁an ▁immediate ▁drop ▁of ▁ 2 5 ▁to ▁ 3 0 ▁percent ▁in ▁the ▁price ▁of ▁food ▁and ▁comm od ities , ▁the ▁population ▁reg ained ▁their ▁feelings ▁of ▁security , ▁confidence , ▁and ▁hope . ▁School bo ys ▁in ▁Ple iku ▁volunt arily ▁helped ▁the ▁troops ▁in ▁un loading ▁the ▁cargo es , ▁and ▁people ▁who ▁had ▁started ▁to ▁ev acu ate ▁now ▁returned ▁to ▁their ▁hom est ead s ." ▁ ▁Ple ime , ▁ 1 9 6 5 ▁ ▁After ▁the ▁un success ful ▁attempt ▁to ▁overcome ▁the ▁ Đ ứ c ▁C ơ ▁Special ▁Forces ▁camp ▁in ▁August ▁ 1 9 6 5 , ▁General ▁V õ ▁N gu y ên ▁Gi á p ▁launched ▁the ▁Winter ▁Spring ▁Camp aign ▁aim ing ▁at ▁cutting ▁South ▁Vietnam ▁in ▁two , ▁from ▁Ple iku ▁in ▁the ▁Central ▁High lands ▁to ▁Qu i ▁N h ơ n ▁in ▁the ▁coast al ▁regions . ▁The ▁plan ▁of ▁General ▁Ch u ▁H uy