▁del ▁C au ca ▁and ▁C au ca ▁in ▁ 2 0 1 1 . ▁In ▁June ▁ 2 0 1 1 ▁Colomb ian ▁chief ▁of ▁staff ▁Ed gar ▁C ely ▁claimed ▁that ▁the ▁F AR C ▁wants ▁to ▁" urban ize ▁their ▁actions ", ▁which ▁could ▁partly ▁explain ▁the ▁increased ▁gu err illa ▁activity ▁in ▁Med ell ín ▁and ▁particularly ▁C ali . ▁Jer emy ▁Mc D erm ott , ▁co - direct or ▁of ▁Ins ight ▁Crime , ▁estimates ▁that ▁F AR C ▁may ▁have ▁some ▁ 3 0 , 0 0 0 ▁' part - time ▁f igh ters ' ▁in ▁ 2 0 1 1 , ▁consisting ▁of ▁both ▁armed ▁and ▁un ar med ▁civil ian ▁supp or ters ▁making ▁up ▁the ▁re bel ▁milit ia ▁network , ▁instead ▁of ▁full - time ▁f igh ters ▁we aring ▁uniform s . ▁ ▁According ▁to ▁Corpor ación ▁Nue vo ▁Ar co ▁I ris , ▁F AR C - EP ▁killed ▁ 4 2 9 ▁members ▁of ▁the ▁Colomb ian ▁government ' s ▁security ▁forces ▁between ▁January ▁and ▁October ▁ 2 0 1 1 . ▁During ▁this ▁same ▁period , ▁the ▁re bel ▁group ▁lost ▁ 3 1 6 ▁of ▁its ▁own ▁members . ▁The ▁year ▁ 2 0 1 1 ▁saw ▁over ▁ 2 , 0 0 0 ▁inc idents ▁of ▁F AR C ▁activity , ▁which ▁was ▁the ▁highest ▁figure ▁recorded ▁since ▁ 1 9 9 8 . ▁The ▁N GO ▁has ▁stated ▁that ▁while ▁most ▁of ▁these ▁inc