SOP: Standard Operating Procedure
LAV: Light Armored Vehicle (specifically a USMC LAV-25)
RCT1: Regimental Combat Team 1
MSR: Main Supply Route (e.g. a major highway)
ASR: Alternate Supply Route (e.g. a back road)
MRE: Meal Ready to Eat (military field ration)
EPW: Enemy Prisoner of War
CG: Commanding General
RTO: Radio Telephone Operator
ATO: Air Tasking Order
