▁by ▁the ▁Spanish ▁Forces . ▁ ▁Tim eline ▁▁ 1 9 5 9 – 1 9 7 9 ▁E TA ' s ▁first ▁attacks ▁were ▁sometimes ▁approved ▁of ▁by ▁a ▁part ▁of ▁the ▁Spanish ▁and ▁Bas que ▁soci eties , ▁who ▁saw ▁E TA ▁and ▁the ▁fight ▁for ▁independence ▁as ▁a ▁fight ▁against ▁the ▁Franco ▁administration . ▁In ▁ 1 9 7 0 , ▁several ▁members ▁of ▁the ▁organization ▁were ▁condem ned ▁to ▁death ▁in ▁the ▁Pro ces o ▁de ▁Burg os ▁( B urg os ▁Tri al ), ▁although ▁international ▁pressure ▁resulted ▁in ▁commut ation ▁of ▁the ▁death ▁sentences . ▁E TA ▁slowly ▁became ▁more ▁active ▁and ▁powerful , ▁and ▁in ▁ 1 9 7 3 ▁the ▁organisation ▁was ▁able ▁to ▁kill ▁the ▁president ▁of ▁the ▁Government ▁and ▁possible ▁successor ▁of ▁Franco , ▁Luis ▁Car rero ▁Blan co . ▁From ▁that ▁moment ▁on , ▁the ▁regime ▁became ▁t ough er ▁in ▁their ▁struggle ▁against ▁E TA : ▁many ▁members ▁died ▁in ▁shoot outs ▁with ▁security ▁forces ▁and ▁police ▁carried ▁out ▁big ▁ra ids , ▁such ▁as ▁the ▁arrest ▁of ▁hundreds ▁of ▁members ▁of ▁E TA ▁in ▁ 1 9 7 5 , ▁after ▁the ▁in fil tr ation ▁of ▁a ▁double ▁agent ▁inside ▁the ▁organisation . ▁ ▁In ▁mid - 1 9 7 5 , ▁a ▁political ▁b loc ▁known ▁as ▁Ko ordin adora ▁A bert z ale ▁Sozial ista ▁( K AS ) ▁was ▁created ▁by ▁Bas que ▁national ist ▁organis ations . ▁A way ▁from ▁the ▁P N V ,