ivi án ▁Regiment ▁in ▁ 1 9 6 5 . ▁During ▁his ▁military ▁service ▁he ▁witness ed ▁the ▁supp ression ▁of ▁the ▁popular ▁milit ias ▁( created ▁after ▁the ▁ 1 9 5 2 ▁revolution ), ▁an ▁event ▁that ▁impact ed ▁his ▁political ▁orientation . ▁Later ▁he ▁began ▁studies ▁at ▁the ▁Fac ulty ▁of ▁Law ▁at ▁the ▁Universidad ▁Mayor ▁de ▁San ▁And rés . ▁There ▁he ▁founded , ▁along ▁with ▁other ▁students ▁from ▁his ▁home ▁province , ▁the ▁Juli án ▁Ap aza ▁University ▁Mov ement ▁( M U J A ). ▁From ▁ 1 9 6 8 , ▁Fl ores ▁Santos ▁emer ged ▁as ▁the ▁leader ▁of ▁the ▁La ▁Paz - based ▁A ym ara ▁nucle us ▁of ▁pe asant ▁activ ists ▁that ▁sought ▁to ▁challenge ▁the ▁Military - Pe asant ▁P act . ▁ ▁In ▁January ▁ 1 9 6 9 , ▁Fl ores ▁Santos ▁became ▁the ▁local ▁head ▁of ▁the ▁trade ▁union ▁in ▁Ant ip ampa , ▁and ▁two ▁months ▁later ▁he ▁became ▁the ▁union ▁head ▁for ▁the ▁A rom a ▁province . ▁In ▁June ▁ 1 9 6 9 ▁he ▁became ▁the ▁executive ▁secretary ▁of ▁the ▁La ▁Paz ▁Department ▁Far mer - Lab our ers ▁Federation ▁( F DT CL P ). ▁In ▁connection ▁with ▁his ▁arrival ▁to ▁the ▁F DT CL P ▁leadership , ▁the ▁name ▁" T ú p aj ▁Kat ari " ▁was ▁added ▁the ▁name ▁of ▁the ▁organization . ▁ ▁In ▁ 1 9 7 0 ▁Fl ores ▁Santos ▁took ▁part ▁in ▁agr arian ▁strugg les