text: Chapter 2
  Acronyms, Abbreviations, and Country Codes
  This chapter presents acronyms, abbreviations, and geographical entity codes.
  SECTION I — ACRONYMS AND ABBREVIATIONS
  2-1. This section (on pages 83 through 105) lists selected Army and joint acronyms and abbreviations
  commonly used in Army doctrine.
  Bolded entries apply only to the Army. An asterisk (*) marks terms shown in chapter 1.
  —A—
  A/DACG arrival/departure airfield control group
  A2 *antiaccess
  AA *assembly area, *avenue of approach
  AADC *area air defense commander
  AADP area air defense plan
  AAFES Army Air Force Exchange Service
  AAMDC Army Air and Missile Defense Command
  AAP Allied administrative publication
  AAR after action review
  ABCA American, British, Canadian, Australian, and New Zealand
  ABCS Army Battle Command System
  ABCT armored brigade combat team
  ABN airborne
  AC Active Component
  ACA *airspace control authority, *airspace coordination area
  ACCE *air component coordination element
  ACH advanced combat helmet
  ACM airspace coordinating measure
  ACO *administrative contracting officer, airspace control order
  ACP *airspace control plan
  ACS *airspace control system
  ACSA acquisition and cross-servicing agreement
  ACT *activity
  ACU Army combat uniform
  AD *air defense, *area denial
  AD3E assess, decide, develop and detect, deliver, and evaluate
  ADA *air defense artillery
  ADAM air defense airspace management
  ADC *area damage control
  ADL *available-to-load date
  ADP Army doctrine publication
  ADRP Army doctrine reference publication
  ADSI air defense systems integrator
  ADWC *air defense warning condition
  AE aeromedical evacuation
  AEF American Expeditionary Forces