8 9 ▁that ▁both ▁sides ▁held ▁formal ▁peace ▁tal ks . ▁In ▁January , ▁E TA ▁announced ▁a ▁ 6 0 - day ▁ce ase fire , ▁while ▁negoti ations ▁between ▁E TA ▁and ▁the ▁government ▁were ▁taking ▁place ▁in ▁Al gi ers . ▁No ▁successful ▁conclusion ▁was ▁reached , ▁and ▁E TA ▁res umed ▁violence . ▁ ▁After ▁the ▁end ▁of ▁the ▁dirty ▁war ▁period , ▁France ▁agreed ▁to ▁co oper ate ▁with ▁the ▁Spanish ▁authorities ▁in ▁the ▁arrest ▁and ▁extr ad ition ▁of ▁E TA ▁members . ▁These ▁would ▁often ▁travel ▁to ▁and ▁from ▁between ▁the ▁two ▁countries ▁using ▁France ▁as ▁a ▁base ▁for ▁attacks ▁and ▁training . ▁This ▁co operation ▁reached ▁its ▁peak ▁in ▁ 1 9 9 2 , ▁with ▁the ▁arrest ▁of ▁all ▁E TA ▁leaders ▁in ▁the ▁town ▁of ▁B id art . ▁The ▁ra id ▁came ▁months ▁before ▁the ▁ 1 9 9 2 ▁Olympic ▁Games ▁in ▁Barcelona , ▁with ▁which ▁E TA ▁tried ▁to ▁gather ▁world wide ▁attention ▁with ▁massive ▁attacks ▁around ▁Catal onia . ▁After ▁that , ▁E TA ▁announced ▁a ▁two - month s ▁ce ase fire , ▁while ▁they ▁rest ruct ured ▁the ▁whole ▁organisation ▁and ▁created ▁the ▁k ale ▁bor ro ka ▁groups . ▁ ▁In ▁ 1 9 9 5 , ▁E TA ▁tried ▁to ▁kill ▁José ▁María ▁A zn ar , ▁who ▁would ▁become ▁prime ▁minister ▁of ▁Spain ▁one ▁year ▁later , ▁and ▁Juan ▁Carlos ▁I . ▁That ▁same ▁year , ▁the ▁organisation ▁launched ▁a ▁peace ▁proposal , ▁which