AR C ▁added ▁the ▁initial s ▁" EP ", ▁for ▁" E j ército ▁del ▁P ue blo " ▁or ▁" Pe ople ' s ▁Army ", ▁to ▁the ▁organization ' s ▁name . ▁ ▁Uri be ▁Ag re ement ▁and ▁Union ▁Patri ót ica ▁ ▁In ▁the ▁early ▁ 1 9 8 0 s , ▁President ▁Bel is ario ▁Bet an cur ▁began ▁discuss ing ▁the ▁possibility ▁of ▁peace ▁tal ks ▁with ▁the ▁gu err illas . ▁This ▁resulted ▁in ▁the ▁ 1 9 8 4 ▁La ▁Uri be ▁Ag re ement , ▁which ▁called ▁for ▁a ▁ce ase - fire , ▁which ▁ended ▁up ▁last ing ▁from ▁ 1 9 8 4 ▁to ▁ 1 9 8 7 . ▁ ▁In ▁ 1 9 8 5 , ▁members ▁of ▁the ▁F AR C – EP , ▁along ▁with ▁a ▁large ▁number ▁of ▁other ▁left ist ▁and ▁commun ist ▁groups , ▁formed ▁a ▁political ▁party ▁known ▁as ▁the ▁Union ▁Patri ót ica ▁(" Pat ri otic ▁Union ", ▁UP ). ▁The ▁UP ▁sought ▁political ▁re forms ▁( known ▁as ▁A pert ura ▁Dem ocrat ica ) ▁such ▁as ▁constitution al ▁reform , ▁more ▁dem ocr atic ▁local ▁elections , ▁political ▁decent ral ization , ▁and ▁ending ▁the ▁dom ination ▁of ▁Colomb ian ▁politics ▁by ▁the ▁Liberal ▁and ▁Conserv ative ▁parties . ▁They ▁also ▁purs ued ▁so cio e conom ic ▁re forms ▁such ▁land ▁red ist ribution , ▁greater ▁health ▁and ▁education ▁sp ending , ▁the ▁national ization ▁of ▁foreign ▁business es