s ▁that ▁" a ▁Cub an - style ▁revolution ary ▁situation ▁might ▁develop ". ▁After ▁the ▁failed ▁attacks , ▁several ▁army ▁out posts ▁were ▁set ▁up ▁in ▁the ▁area . ▁ ▁In ▁October ▁ 1 9 5 9 , ▁the ▁United ▁States ▁sent ▁a ▁" Special ▁Survey ▁Team " ▁composed ▁of ▁counter ins ur gency ▁exper ts ▁to ▁investigate ▁Colombia ' s ▁internal ▁security ▁situation . ▁Among ▁other ▁policy ▁recommend ations ▁the ▁US ▁team ▁ad vised ▁that ▁" to ▁shield ▁the ▁interests ▁of ▁both ▁Colomb ian ▁and ▁US ▁authorities ▁against ▁' inter vention ist ' ▁charges ▁any ▁special ▁aid ▁given ▁for ▁internal ▁security ▁was ▁to ▁be ▁ster ile ▁and ▁cover t ▁in ▁nature ". ▁In ▁February ▁ 1 9 6 2 , ▁three ▁years ▁after ▁the ▁ 1 9 5 9 ▁" US ▁Special ▁Survey ▁Team ", ▁a ▁Fort ▁B rag g ▁top - level ▁U . S . ▁Special ▁War fare ▁team ▁head ed ▁by ▁Special ▁War fare ▁Center ▁commander ▁General ▁William ▁P . ▁Y ar borough , ▁visited ▁Colombia ▁for ▁a ▁second ▁survey . ▁ ▁In ▁a ▁secret ▁supp lement ▁to ▁his ▁report ▁to ▁the ▁J oint ▁Chief s ▁of ▁Staff , ▁Y ar borough ▁encourag ed ▁the ▁creation ▁and ▁deployment ▁of ▁a ▁US - back ed ▁force ▁to ▁commit ▁" par amil it ary , ▁sab ot age ▁and / or ▁terror ist ▁activities ▁against ▁known ▁commun ist ▁pro ponents ". ▁ ▁The ▁new ▁counter - ins ur gency ▁policy ▁was ▁instit uted ▁as ▁Plan ▁Laz o ▁in ▁ 1