AWOL
Absent Without Leave

CO
Commanding Officer

FOB
Forward Operating Base

MRE
Meal, Ready-to-Eat

ROE
Rules of Engagement

IED
Improvised Explosive Device

KIA
Killed in Action

MIA
Missing in Action

POW
Prisoner of War

SOP
Standard Operating Procedure

HQ
Headquarters

NCO
Non-Commissioned Officer

SNAFU
Situation Normal, All Fouled Up (slang)

TOC
Tactical Operations Center

PT
Physical Training

LZ
Landing Zone

R&R
Rest and Recuperation

USMC
United States Marine Corps

ASAP
As Soon As Possible

UAV
Unmanned Aerial Vehicle (Drone)