AA

  • Air-to-Air
  • Anti-Aircraft 

AAA

Anti-Aircraft Artillery

AAAV

Advanced Amphibious Assault Vehicle

AADC

Area Air Defense Commander

AAFES

Army Air Force Exchange System

AAM

Air-to-Air Missle

AAMG

Anti-Aircraft Machine Gun

AAP

American Academy of Pediatrics 

AAV

  • Amphibious Assault Vehicle
  • Assault Amphibian Vehicle  

AAVC

Assault Amphibian Vehicle, Command

ABA

Applied Behavior Analysis

ABM

Anti-Ballistic Missle

AC

Active Component

ACC

Air Combat Command 

ACFT

Army Combat Fitness Test

ACM

Air Combat Maneuvering

(ACMI) 

Air Combat Maneuvering Instrumentation 

(ACMR) 

Air Combat Maneuvering Range 

ACO

Airspace Control Order

AAA

Anti-Aircraft Artillery

AAAV

Advanced Amphibious Assault Vehicle

AADC

Area Air Defense Commander

AAFES

Army Air Force Exchange System

AAM

Air-to-Air Missle

AAMG

Anti-Aircraft Machine Gun

AAP

American Academy of Pediatrics