Army Audit Agency 
Anti Aircraft Artillery 
Alternate Assembly Area 
Air Avenue of Approach 
Allocations Assessment and Analysis 
Anti-Aircraft Artillery 
Army Ammunition Activity 
Arrival and Assembly Area 
Assign Alternate Area 
Authorized Accounting Activity 
Adaptive Antenna Array 
Advanced Adaptive Autopilot 
Advanced Amphibious Assault 
Advanced Assault Amphibians 
AEGIS Acquisition Agent 
air avenues of approach 
Airborne Assault Area 
Allocations, Assessments and Analysis 
Alternate Assemble Area 
Anti-Air Armament 
anti-air artillery 
Antiaircraft Artillery 
Area Advisory Authority 
artifacts, agents and activities 
Assessment of Aircraft Attrition 
Authorization Accounting Activity 
Automated Airlift Analysis 
Automatic Anti-Aircraft 
Awaiting Aircraft Availability