▁in ▁the ▁La ▁Paz ▁Department , ▁with ▁land ▁se iz ures . ▁These ▁moves ▁were ▁later ▁legal ized ▁through ▁an ▁agr arian ▁reform ▁the ▁same ▁year . ▁In ▁August ▁ 1 9 7 1 , ▁at ▁its ▁sixth ▁con gress ▁( organ ized ▁by ▁the ▁government ), ▁Fl ores ▁Santos ▁was ▁elected ▁executive ▁secretary ▁of ▁the ▁National ▁Far mer - Lab our er ▁Confeder ation ▁of ▁Boliv ia ▁( Conf ed era ción ▁Nacional ▁de ▁Tra b aj adores ▁Camp es inos ▁de ▁Boliv ia , ▁C N TC B ). ▁ ▁In ▁ 1 9 7 1 ▁Fl ores ▁Santos ▁was ▁forced ▁into ▁ex ile ▁to ▁Chile . ▁He ▁returned ▁the ▁next ▁year ▁to ▁organ ize ▁under ground ▁resistance ▁against ▁the ▁military ▁government . ▁ ▁In ▁ 1 9 7 8 ▁he ▁was ▁one ▁of ▁the ▁found ers ▁of ▁the ▁T up aj ▁Kat ari ▁Revolution ary ▁Mov ement ▁( M RT K ). ▁ ▁On ▁June ▁ 2 6 , ▁ 1 9 7 9 ▁the ▁C ST U CB ▁was ▁founded ▁with ▁Fl ores ▁Santos ▁as ▁its ▁found ing ▁executive ▁secretary . ▁In ▁November ▁ 1 9 7 9 ▁he ▁led ▁strugg les ▁against ▁a ▁new ▁military ▁coup , ▁organ izing ▁block ades ▁of ▁high ways ▁across ▁the ▁country . ▁During ▁the ▁military ▁government ▁of ▁García ▁Me za , ▁he ▁served ▁as ▁the ▁c land est ine ▁executive ▁secretary ▁of ▁the ▁Central ▁O br era ▁Boliv iana ▁( CO B ). ▁The ▁coup ▁of ▁García ▁Me za ▁had ▁caught ▁the