text: Military Terms
  engagement area — An area where the commander masses effects to contain and destroy an enemy force.
  (FM 3-90) Also called EA.
  engagement authority — (DOD) An authority vested with a joint force commander that may be delegated to a
  subordinate commander, that permits an engagement decision. (JP 3-01)
  engagement criteria — Protocols that specify those circumstances for initiating engagement with an enemy
  force. (FM 3-90)
  engagement priority — Identifies the order in which the unit engages enemy systems or functions. (FM 3-90)
  engineer regulating point — A location used to ensure that vehicles do not exceed the capacity of the crossing
  means and to give drivers final instructions on site-specific procedures and information. (ATP 3-90.4) Also
  called ERP.
  engineer work line — A coordinated boundary or phase line used to compartmentalize an area of operations to
  indicate where specific engineer units have primary responsibility for the engineer effort. (FM 3-34)
  envelopment — A form of maneuver in which an attacking force avoids an enemy’s principal defense by
  attacking along an assailable flank. (FM 3-90)
  environmental assessment — A study to determine if significant environmental impacts are expected from a
  proposed action. (ATP 3-34.5)
  environmental compliance — The unconditional obeying of international, foreign nation, federal, state, and
  local environmental rules, regulations, and guidelines that affect current operations. (ATP 3-34.5)
  environmental conditions report — A concise summary of events or situations that created a negative or
  positive change in environmental conditions at a base camp site. (ATP 3-34.5)
  environmental modification technique — Any method of warfare for changing—through the deliberate
  manipulation of natural processes—the dynamics, composition, or structure of the Earth (to include its biota,
  lithosphere, hydrosphere, and atmosphere) or outer space. (FM 6-27)
  environmental protection level — The varying level of environmental protection that can reasonably be
  afforded at any particular time during military operations, given the absolute requirement that such a diversion
  of resources away from the mission at hand does not adversely affect that mission, any friendly personnel, or
  indigenous or refugee populations. (ATP 3-34.5)
  environmental reconnaissance — The systematic observation and recording of site or area data collected by
  visual or physical means, dealing specifically with environmental conditions as they exist, and identifying areas
  that are environmentally sensitive or of relative environmental concern, for information and decisionmaking
  purposes. (ATP 3-34.5)
  environmental restoration — The systematic removal of pollution or contaminants from the environment,
  especially from the soil or groundwater, by physical, chemical, or biological means; also known as remediation
  or environmental cleanup. (ATP 3-34.5)
  environmental services — Environmental services are the various combinations of scientific, technical, and
  advisory activities (including modification processes and the influence of man-made and natural factors)
  required to acquire, produce, and supply information on the past, present, and future states of space,
  atmospheric, oceanographic, and terrestrial surroundings for use in military planning and decisionmaking
  processes or to modify those surroundings to enhance military operations. (ATP 3-34.5)
  environmental stewardship — The integration and application of environmental values into the military mission
  to sustain readiness, improve the quality of life, strengthen civil relations, and preserve valuable natural
  resources. (ATP 3-34.5)
  esoteric communications — Public statements whose surface meaning (manifest content) does not reveal the
  real purpose, meaning, or significance (latent content) of the author. (ATP 2-22.9-1)
  essential care — The absolutely necessary initial, en route, resuscitative, and surgical care provided to save,
  stabilize, and return as many Soldiers to duty as quickly as possible. (FM 4-02)
  essential dental care — Dental care necessary to intercept potential emergencies to prevent lost duty time and
  preserve fighting strength. (ATP 4-02.19)
  essential element of friendly information — A critical aspect of a friendly operation that, if known by a threat
  would subsequently compromise, lead to failure, or limit success of the operation and therefore should be
  protected from enemy detection. (ADP 5-0) Also called EEFI. See also commander’s critical information
  requirement.
  essential elements of information — (DOD) The most critical information requirements regarding the
  adversary and the environment needed by the commander by a particular time to relate with other available
  information and intelligence in order to assist in reaching a logical decision. (JP 2-0) Also called EEIs.
  essential task — (Army) A specified or implied task that must be executed to accomplish the mission. (FM 5-0)