text: Glossary
  coordination level
  An airspace coordinating measure below which fixed-wing aircraft normally will not fly. (JP 3-52)
  core competency
  An essential and enduring capability that a branch or an organization provides to Army operations.
  (ADP 1-01)
  counterair
  A mission at the theater level that integrates offensive and defensive operations to attain and maintain a
  desired degree of control of the air and protection by neutralizing or destroying enemy aircraft and
  missiles, both before and after launch. (JP 3-01)
  *counterbattery fire
  Fire delivered for the purpose of destroying or neutralizing indirect fire weapon systems.
  counterfire
  Fire intended to destroy or neutralize enemy weapons. (JP 3-09)
  countermobility
  A set of combined arms activities that use or enhance the effects of natural and man-made obstacles to
  prevent the enemy freedom of movement and maneuver. (ATP 3-90.8)
  *counterpreparation fire
  The intensive prearranged fire delivered when the imminence of the enemy attack is discovered.
  covert crossing
  A planned crossing of an inland water obstacle or other gap in which the crossing is intended to be
  undetected. (ATP 3-90.4)
  *critical friendly zone
  A commander designated friendly area of coverage critical to the protection of an asset whose loss
  would seriously jeopardize the mission that is employed by weapons location radar.
  cyberspace attack
  Actions taken in and through cyberspace that create denial (i.e., degradation, disruption, or destruction)
  or manipulation effects in cyberspace and are considered a form of fires. (JP 3-12)
  cyberspace domain
  The interdependent networks of information technology infrastructures and resident data, including the
  Internet, telecommunication networks, computer systems, embedded processors and controllers, and
  relevant portions of the electromagnetic spectrum. (FM 3-0)
  cyberspace operations
  The employment of cyberspace capabilities where the primary purpose is to achieve objectives in or
  through cyberspace. (JP 3-0)
  *danger close
  For air-to-surface and surface-to-surface missions is a mandatory call alerting of an elevated risk to the
  closest friendly troops from the intended point of a weapon’s impact requiring specific procedures for
  risk mitigation.
  decisive operation
  The operation that directly accomplishes the mission. (ADP 3-0)
  deep area
  Where the commander sets conditions for future success in close combat. (ADP 3-0)
  deep operations
  Tactical actions against enemy forces, typically out of direct contact with friendly forces, intended to
  shape future close operations and protect rear operations. (FM 3-0)