Glossary - 3 End-of–the–Rope Prusik knot used to attach a movable rope to a fixed rope; see also Middle-of–the–Rope Prusik ENY enemy EPW enemy prisoner of war FA field artillery FDC fire direction center FFIR friendly force information requirements Figure 8 slip knot knot used to form an adjustable bight in the middle of a rope FLIR forward looking infrared FLOT forward line of own troops FO forward observer FPF final protective fires FRAGO fragmentary order FSC fire support coordinator FSO fire support officer GOTWA G Where leader is Going O Others he is taking with him T Time he plans to go W What to do if the leader does not return in time A The unit’s and the leader’s actions on chance contact while the leader is gone GPS global positioning system GRN grenadier HDG heading HE high explosive H-Hour hit hour (the time the unit plans to accomplish the mission) HI high temperature (weather) HPT high-payoff target HQ headquarters IAW in accordance with ICM improved conventional munitions ID identification IP initial point IR information requirements ERRP en route to release point JAAT joint air attack team JD Julian date KIA killed in action LAW light antiarmor weapon LBV load-bearing vest LD line of departure