text: Appendix A
  Close Air Support and Close Combat Attack
  This appendix does not change existing doctrine, tactics, techniques, or procedures
  for employing pathfinder teams and elements. It just introduces a vision of how CAS
  affects pathfinder teams.
  DEFINITIONS
  A-1. Close air support (CAS) is an air action by fixed and rotary wing aircraft against hostile targets
  that are in close proximity to friendly forces and require detailed integration of each air mission with the
  fire and movement of those forces.
  A-2. Close combat attack (CCA) is a technique to control attack helicopters (AH-64 or OH-58D) in a
  close air support role, usually very near friendly troops in contact. It helps the pilot see the same target
  you see.
  PURPOSE
  A-3. The main purpose of CAS/CCA is to provide support to ground unit commanders. Other purposes
  of CAS include the following:
  AIR INTERDICTION
  A-4. Air interdiction (AI) is very useful to the ground unit commander planning an assault. Air
  superiority is essential in accomplishing the mission. AI assets will own the air in the area of operation,
  eliminating the possibility of the friendly forces being hit by enemy CAS.
  SECURITY AND RECONNAISSANCE
  A-5. Close air support aircraft can pull security during airmobile operations, as well as reconnoiter the
  air before any mission to remove any air threats.
  ATTACK
  A-6. CAS/CCA aircraft can attack targets without actually being on a support mission. CAS/CCA can
  commence bombing runs or strafing runs on one of many different target types.
  THEATER MISSILE DEFENSE
  A-7. CAS/CCA aircraft can provide missile defense.
  SPECIAL OPERATIONS
  A-8. Certain CAS/CCA aircraft are set aside strictly for special operations units and missions.
  SUPPORT BY FIRE
  A-9. Though not the main purpose of CAS/CCA, support by fire is the most common.