$ 3 0 0   mill ion ▁per ▁year — from ▁tax ation ▁of ▁the ▁illegal ▁drug ▁trade ▁and ▁other ▁activities , ▁r ans om ▁kid n app ings , ▁bank ▁rob ber ies , ▁and ▁ext ort ion ▁of ▁large ▁land hold ers , ▁mult in ational ▁corpor ations , ▁and ▁ag rib us iness . ▁From ▁tax ation ▁of ▁illegal ▁dru gs ▁and ▁other ▁economic ▁activity , ▁F AR C ▁was ▁estimated ▁to ▁receive ▁US $ 6 0 – 1 0 0   mill ion ▁per ▁year . ▁ ▁Me ans ▁of ▁finan cing ▁ ▁The ▁guer illas ' s ▁main ▁means ▁of ▁finan cing ▁was ▁through ▁the ▁drug ▁trade ▁which ▁includes ▁both ▁direct ▁and ▁indirect ▁participation ; ▁tax ation , ▁administration ▁or ▁control ▁of ▁areas ▁of ▁production ▁and ▁tra ff ick ing . ▁A ▁large ▁but ▁often ▁difficult ▁to ▁estimate ▁portion ▁of ▁fund ing ▁comes ▁from ▁the ▁tax ation ▁of ▁business es ▁and ▁even ▁local ▁far mers , ▁often ▁l ump ed ▁in ▁with ▁or ▁defined ▁by ▁its ▁oppon ents ▁as ▁ext ort ion . ▁ ▁D rug ▁trade ▁▁ ▁F AR C ▁was ▁not ▁initially ▁involved ▁in ▁direct ▁drug ▁cultiv ation , ▁tra ff ick ing , ▁or ▁trans - ship ment ▁prior ▁to ▁or ▁during ▁the ▁ 1 9 8 0 s . ▁Instead , ▁it ▁maintained ▁a ▁system ▁of ▁tax ation ▁on ▁the ▁production ▁that ▁took ▁place ▁in ▁the ▁territ ories ▁that ▁they ▁controlled , ▁in ▁exchange ▁for ▁protect ing ▁the ▁grow ers ▁and ▁establish ing ▁law