text: Military Terms
  defilade — (DOD) 1. Protection from hostile observation and fire provided by an obstacle such as a hill, ridge, or
  bank. (JP 3-09)
  definitive care — Care or treatment which returns an ill or injured Soldier achieving maximum medical
  improvement. (FM 4-02)
  definitive identification — The employment of multiple state-of-the-art, independent, established protocols and
  technologies by scientific experts in a nationally recognized laboratory to determine the unambiguous identity
  of a chemical, biological, radiological, and/or nuclear hazard with the highest level of confidence and degree of
  certainty necessary to support strategic-level decisions. (ATP 3-11.37)
  definitive treatment — The final role of comprehensive care provided to return the patient to the highest degree
  of mental and physical health possible. It is not associated with a specific role or location in the continuum of
  care; it may occur in different roles depending upon the nature of the injury or illness. (FM 4-02)
  deflection — A horizontal clockwise angle measured from the line of fire or the rearward extension line of fire to
  the line of sight to a given aiming point with the vertex of the angle at the instrument. (ATP 3-09.50)
  delay — When a force under pressure trades space for time by slowing down the enemy’s momentum and
  inflicting maximum damage on enemy forces without becoming decisively engaged. (ADP 3-90)
  delay line — A phase line over which an enemy is not allowed to cross before a specific date and time or enemy
  condition. (FM 3-90)
  deliberate breach — The systematically planned and executed creation of a lane through a barrier or obstacle.
  (ATP 3-90.4)
  deliberate crossing — The crossing of an inland water obstacle or other gap that requires extensive planning
  and detailed preparations. (ATP 3-90.4)
  deliberate operation — An operation in which the tactical situation allows the development and coordination of
  detailed plans, including multiple branches and sequels. (ADP 3-90)
  deliberate search and recovery operations — Performed during the post-combat and area clearance phases,
  when enemy threat is minimal, and adequate time is available to use all the detailed techniques. (ATP 4-46)
  demobilization — (DOD) 1. The process of transitioning a conflict or wartime military establishment and defense
  based civilian economy to a peacetime configuration while maintaining national security and economic vitality.
  (JP 4-05)
  demonstration — (DOD) 2. In military deception, a show of force in an area where a decision is not sought that
  is made to deceive an adversary. (JP 3-13.4) (Army) A variation of tactical deception used as a show of force
  in an area where a unit does not seek a decision and attempts to mislead an adversary. (FM 3-90)
  denial operations — Actions to hinder or deny the enemy the use of terrain, supplies, or facilities. (FM 3-90)
  denied area — (DOD) An area under enemy or unfriendly control in which friendly forces cannot expect to
  operate successfully within existing operational constraints and force capabilities. (JP 3-05) (Army) An area
  that is operationally unsuitable for conventional forces due to political, tactical, environmental, or geographical
  reasons. It is a primary area for special operations forces. (FM 3-05)
  denied, degraded, or disrupted space operational environment — A composite of those conditions and
  influences in which space-enabled capabilities have been impaired by hostile threats or non-hostile means.
  (FM 3-14) Also called D3SOE.
  dental care — The preventive, restorative, and surgical treatment of the hard and soft oral tissues, which is
  comprised of operational dental care and comprehensive dental care. (ATP 4-02.19)
  deny — A task to hinder or prevent the enemy from using terrain, space, personnel, supplies, or facilities. (ATP
  3-21.20)
  Department of Defense information network — (DOD) The set of information capabilities and associated
  processes for collecting, processing, storing, disseminating, and managing information on demand to
  warfighters, policy makers, and support personnel, whether interconnected or stand-alone. (JP 6-0) Also
  called DODIN.
  Department of Defense information network operations — (DOD) Operations to secure, configure, operate,
  extend, maintain, and sustain Department of Defense cyberspace to create and preserve the confidentiality,
  availability, and integrity of the Department of Defense information network. (JP 3-12) Also called DODIN
  Operations.
  Department of Defense information network-Army — An Army-operated enclave of the Department of
  Defense information network that encompasses all Army information capabilities that collect, process, store,
  display, disseminate, and protect information worldwide. (ATP 6-02.71) Also called DODIN-A.
  departure airfield — (DOD) An airfield on which troops and/or materiel are enplaned for flight. (JP 3-36)
  departure yard — Yard where classified cars are made up into trains. (ATP 4-14)