▁te en agers ▁w aging ▁a ▁gu err illa ▁war ▁on ▁the ▁enemy ▁soldiers ▁in ▁the ▁region ▁around ▁their ▁fict ional ▁home ▁town ▁of ▁Wir ra we e . ▁The ▁name ▁of ▁the ▁series ▁is ▁derived ▁from ▁the ▁title ▁of ▁the ▁first ▁book , ▁Tom orrow , ▁When ▁the ▁War ▁Beg an . ▁ ▁The ▁books ▁in ▁the ▁series ▁were ▁originally ▁published ▁from ▁ 1 9 9 3 – 9 9 , ▁by ▁Pan ▁Mac mill an ▁and ▁have ▁been ▁repr int ed ▁six teen ▁times . ▁A ▁sequ el ▁series , ▁The ▁Ell ie ▁Chron icles , ▁was ▁later ▁published ▁from ▁ 2 0 0 3 – 0 6 . ▁The ▁follow - up ▁series ▁concerns ▁itself ▁largely ▁with ▁the ▁attempts ▁of ▁society ▁and ▁the ▁protagon ist ▁to ▁reg ain ▁a ▁normal ▁level ▁of ▁function ing ▁in ▁the ▁face ▁of ▁the ▁psych ological ▁damage ▁sust ained ▁during ▁the ▁war . ▁ ▁In ▁the ▁original ▁series ▁( 1 9 9 3 – 9 9 ) ▁the ▁identity ▁of ▁the ▁inv ading ▁force ▁is ▁never ▁specified , ▁which ▁is ▁most ▁likely ▁by ▁explicit ▁intent ▁of ▁the ▁author . ▁In ▁the ▁sequ el ▁series ▁( 2 0 0 3 – 0 6 ) ▁the ▁inv ading ▁force ▁is ▁specified ▁as ▁a ▁coal ition ▁of ▁highly ▁popul ous ▁South ▁Asian ▁nations , ▁who ▁see ▁the ▁vast ▁under develop ed ▁spaces ▁and ▁natural ▁resources ▁of ▁Australia ▁as ▁a ▁way ▁to ▁tack le ▁their ▁human ▁over pop ulation ▁problem , ▁and ▁the ▁series ▁features ▁mult in ational ▁colon