AAV — Amphibious Assault Vehicle
AD — Armored Division
AKA — Also Known As
AWOL — Absent Without Leave
BND — Bundesnachrichtendienst (German intelligence)
BTR — Bronyetransporter (Soviet class of armored vehicles)
CAG — Commander Air Group
CG — Commanding General
CIA — Central Intelligence Agency
CIC — Combat Information Center
CIWS — Close-in Weapons Systems
CO — Commanding Officer
CVC — Combat Vehicle Crewman’s Helmet
DHS — Department of Homeland Security
DIA — Defense Intelligence Agency
DoD — Department of Defense
ECM — Electronic Counter Measures
ESSM — Evolved SeaSparrow Missile
FAC — Forward Air Controller
FIST — Fire Support Team
FBI — Federal Bureau of Investigations
FISA — Foreign Intelligence Surveillance Act
FRAGO — Fragmentary Order
FSB — Federalnaya Sluzhba Bezopasnosti (Russian counterintelligence)
FSO — Federalnaya Sluzhba Okhrany (Russian Secret Service)
FSO — Fire Support Officer
GDF — Global Defense Force
GRU — Glavnoye Razvedyvatel’noye Upravleniye (Russian intelligence directorate)
HE — High-explosive
HIMARS — High Mobility Artillery Rocket System
HQ — Headquarters
HUD — Heads-Up Display
IR — Infrared
IT — Information Technology
J3 — Operations Officer
JDAM — Joint Direct Attack Munitions
JLTV — Joint Light Tactical Vehicle
LCAC — Landing Craft Air Cushion (hovercraft)
LES — Leave and Earnings Statement
LNO — Liaison Officer
LRAS — Long-Range Acquisition System
MANPADS — Man-portable Air-defense Systems
MP — Member of Parliament
MPH — Miles Per Hour
MRE — Meal Ready-to-Eat
MWR — Morale, Welfare and Recreation
NCO — Noncommissioned Officer
NVG — Night Vision Goggles
PEOC — Presidential Emergency Operations Center
PLA — People’s Liberation Army (Chinese army)
PM — Prime Minister
POTUS — President of the United States
PSYOPS — Psychological Operations
R & D — Research and Development
RIM — Rolling Airframe Missile
RO-RO — Roll-on, Roll-off
ROTC — Reserve Officer Training Course
RPA — Russian Provisional Authority
RPG — Rocket Propelled Grenade
RTO — Radio-telephone Operator
SAM — Surface-to-Air Missile
SAS — Special Air Service
SecDef — Secretary of Defense
SITREP — Situational Report
SOF — Special Operations Forces
TACP — Tactical Air Control Party
TOW — Tube-Launched Optically Tracked Wire-Guided
UPS — United Parcel Service
USAID — United States Agency for International Development
VLS — Vertical Launch System
VP — Vice President
VTOL — Vertical Takeoff and Landing
WMD — Weapon of Mass Destruction
XO — Commanding Officer