AMRAAM advanced medium range air-to-air missile
AMS Army Medical Service
AMSC Army Medical Specialists Corps
ANC Army Nurse Corps
ant antenna
antipers antipersonnel
AP ammunition point
AP armor-piercing
APAM antipersonnel and antimateriel
APC armor-piercing capped
APC armored personnel carrier
APDS armor-piercing discarding sabot
APERS anti-personnel
APS active protection system
ARes Army reserve
ARG Amphibious Ready Group
ARNG Army National Guard
armd armored
armd cav armored cavalry
armd cav sqdn armored cavalry squadron
armd cav trp armored cavalry troop
armd div armored division
armd veh armored vehicle
armt armament
AR-PERSCOM Army Reserve Personnel Command
ARSTAF Army Staff
arty artillery
arty wpn sys artillery weapon system
ASB aviation support battalion
ASETF Air and Space Expeditionary Task Force
aslt assault
aslt ech assault echelon
ASROC anti-submarine rocket
assy assembly
ASUW antisurface ship warfare
ASVAB Armed Services Vocational Aptitude Battery
ASW anti-submarine warfare
AT antitank
ATAS air-to-air Stinger
ATC Air Training Command
ATGW anti-tank guided weapon
atk attack
atk avn attack aviation
atk hel attack helicopter
atker attacker
ATKHB attack helicopter battalion
AT wpn antitank weapon
AU Air University
AUS Army of the United States
auto automatic
aux auxiliary
AVLB armored vehicle launched bridge
avn aviation
AW air warfare
AWACS Airborne Warning and Control System
BAD blast attenuator device
bat battle
bat battleship
BAS battalion aid station
BB battleship
BCC battlefield circulation control
BCU battery/-coolant unit
BD base-detonating
bde brigade
bde comdr brigade commander
bde rr CP
BDO battledress overgarment
BDU battle dress uniform
BEB bridge-erection boat
BFV Bradley fighting vehicle
biol biological
biol agt biological agent
biol atk biological attack
biol wpn biological weapon
BL butt line
BM ballistic missile
BMC4I battle management command, control, communications, computers and intelligence
BMD ballistic missile defense
bmdr bombardier
bmr bomber
bn battalion
bn comm sec battalion communication section
bn hq battalion headquarters
BOC battery operations center
br branch
Brig. Gen. Brigadier General
BSA brigade support area
BSFV Bradley Stinger fighting vehicle
bt boat
btry battery
BVR beyond visual range
BW biological warfare
BW agt biological warfare agent
C2 command and control
C3 command, control and communications
C3I command, control, communications and intelligence
C4I command, control, communications, computers and intelligence
CA civil affairs
CAC command aviation company
cal caliber
cam camouflage
CAM chemical agent monitor
CAP combat air patrol
Capt captain
CAR Chief, Army Reserve
CARGRU carrier group
cas casualty
cas agt casualty agent
CATCC carrier air traffic control center
catk counterattack
cav cavalry
cav sqdn cavalry squadron
cbt combat
cbt aslt trans hel combat assault transportation helicopter
cbt orgn combat organization
cbt