▁ ▁From ▁ 1 9 9 2 ▁to ▁late ▁ 2 0 0 7 ▁a ▁radical ▁environmental ▁activ ist ▁movement ▁known ▁as ▁EL F ▁or ▁Earth ▁Liber ation ▁Front ▁engaged ▁in ▁a ▁near ▁constant ▁campaign ▁of ▁decent ral ized ▁sab ot age ▁of ▁any ▁construction ▁projects ▁near ▁wild ▁lands ▁and ▁extract ive ▁indust ries ▁such ▁as ▁logging ▁and ▁even ▁the ▁burning ▁down ▁of ▁a ▁ski ▁resort ▁of ▁V ail ▁Colorado . ▁ ▁EL F ▁used ▁sab ot age ▁tact ics ▁often ▁in ▁loose ▁coord ination ▁with ▁other ▁environmental ▁activ ist ▁movements ▁to ▁phys ically ▁delay ▁or ▁destroy ▁thre ats ▁to ▁wild ▁lands ▁as ▁the ▁political ▁will ▁developed ▁to ▁protect ▁the ▁target ed ▁wild ▁areas ▁that ▁EL F ▁engaged . ▁ ▁As ▁war ▁t actic ▁▁ ▁In ▁war , ▁the ▁word ▁is ▁used ▁to ▁describe ▁the ▁activity ▁of ▁an ▁individual ▁or ▁group ▁not ▁associated ▁with ▁the ▁military ▁of ▁the ▁parties ▁at ▁war , ▁such ▁as ▁a ▁foreign ▁agent ▁or ▁an ▁ind igen ous ▁supp orter , ▁in ▁particular ▁when ▁actions ▁result ▁in ▁the ▁destruction ▁or ▁dam aging ▁of ▁a ▁product ive ▁or ▁vital ▁facility , ▁such ▁as ▁equipment , ▁fact ories , ▁d ams , ▁public ▁services , ▁storage ▁plants ▁or ▁log istic ▁routes . ▁Prime ▁examples ▁of ▁such ▁sab ot age ▁are ▁the ▁events ▁of ▁Black ▁Tom ▁and ▁the ▁Kings land ▁Ex pl os ion . ▁Like ▁sp ies , ▁sab ote urs ▁who ▁conduct ▁a ▁military ▁operation ▁in ▁civil ian ▁clothes ▁or ▁enemy ▁uniform s ▁behind ▁enemy ▁lines ▁are ▁subject ▁to ▁pro