serv ient ▁to ▁the ▁Commun ists ▁and ▁had ▁to ▁accept ▁the ▁P Z PR ' s ▁" leading ▁role " ▁as ▁a ▁condition ▁of ▁their ▁existence . ▁It ▁was ▁polit ically ▁influenced ▁by ▁the ▁USS R ▁to ▁the ▁extent ▁of ▁being ▁its ▁satellite ▁country , ▁along ▁with ▁East ▁Germany , ▁Czech oslov ak ia ▁and ▁other ▁Eastern ▁B loc ▁members . ▁▁ ▁From ▁ 1 9 5 2 , ▁the ▁highest ▁law ▁was ▁the ▁Constitution ▁of ▁the ▁Polish ▁People ' s ▁Republic , ▁and ▁the ▁Polish ▁Council ▁of ▁State ▁replaced ▁the ▁presiden cy ▁of ▁Poland . ▁E lections ▁were ▁held ▁on ▁the ▁single ▁lists ▁of ▁the ▁Front ▁of ▁National ▁Unity . ▁Despite ▁these ▁changes , ▁Poland ▁was ▁one ▁of ▁the ▁most ▁liberal ▁commun ist ▁nations ▁and ▁was ▁the ▁only ▁commun ist ▁country ▁in ▁the ▁world ▁which ▁did ▁not ▁have ▁any ▁social ist ▁symbols ▁( red ▁star , ▁stars , ▁ears ▁of ▁whe at ▁or ▁ham mer ▁and ▁sick le ) ▁on ▁its ▁flag ▁and ▁coat ▁of ▁arms . ▁The ▁White ▁E agle ▁founded ▁by ▁Polish ▁monarch s ▁in ▁the ▁Middle ▁A ges ▁remained ▁as ▁Poland ' s ▁national ▁em blem ; ▁the ▁only ▁feature ▁removed ▁by ▁the ▁commun ists ▁from ▁the ▁pre - war ▁design ▁was ▁the ▁crown , ▁which ▁was ▁seen ▁as ▁imperial istic ▁and ▁monarch ist . ▁ ▁Foreign ▁relations ▁▁ ▁During ▁its ▁existence , ▁the ▁Polish ▁People ' s ▁Republic ▁maintained ▁relations ▁not ▁only ▁with ▁the ▁Soviet ▁Union , ▁but ▁several ▁commun ist ▁states ▁around ▁the ▁world . ▁It ▁also