▁P RL ▁restored ▁relations ▁with ▁Israel . ▁ ▁The ▁P RL ▁participated ▁as ▁a ▁member ▁of ▁the ▁UN , ▁the ▁World ▁Trade ▁Organ ization , ▁the ▁Wars aw ▁P act , ▁Come con , ▁International ▁Energy ▁Agency , ▁Council ▁of ▁Europe , ▁Organ ization ▁for ▁Security ▁and ▁Co - operation ▁in ▁Europe , ▁International ▁At omic ▁Energy ▁Agency , ▁and ▁Inter k os mos . ▁ ▁Econom y ▁ ▁Early ▁years ▁▁ ▁Poland ▁suffered ▁trem end ous ▁economic ▁losses ▁during ▁World ▁War ▁II . ▁In ▁ 1 9 3 9 , ▁Poland ▁had ▁ 3 5 . 1 ▁million ▁inhabitants , ▁but ▁the ▁census ▁of ▁ 1 4 ▁February ▁ 1 9 4 6 ▁showed ▁only ▁ 2 3 . 9 ▁million ▁inhabitants . ▁( The ▁difference ▁was ▁partially ▁the ▁result ▁of ▁the ▁border ▁revision .) ▁The ▁losses ▁in ▁national ▁resources ▁and ▁infrastr ucture ▁amount ed ▁to ▁ 3 8 %. ▁Comp ared ▁to ▁Western ▁European ▁nations , ▁including ▁Germany , ▁Poland ▁was ▁still ▁mostly ▁an ▁agr arian ▁country . ▁The ▁implementation ▁of ▁the ▁immense ▁tasks ▁involved ▁with ▁the ▁reconst ruction ▁of ▁the ▁country ▁was ▁inter tw ined ▁with ▁the ▁struggle ▁of ▁the ▁new ▁government ▁for ▁the ▁stabil isation ▁of ▁power , ▁made ▁even ▁more ▁difficult ▁by ▁the ▁fact ▁that ▁a ▁considerable ▁part ▁of ▁society ▁was ▁m istr ust ful ▁of ▁the ▁commun ist ▁government . ▁The ▁occupation ▁of ▁Poland ▁by ▁the ▁Red ▁Army ▁and ▁the ▁support ▁the ▁Soviet ▁Union ▁had ▁shown ▁for ▁the ▁Polish ▁commun ists ▁was ▁decis ive ▁in ▁the ▁commun