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Military glossary - Letter E



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E-2
See Hawkeye.

EALT
See earliest anticipated launch time.

Earliest anticipated launch time
(DOD) The earliest time expected for a special operations tactical element and its supporting platform to depart the staging or marshalling area together en route to the operations area.

Earmarking of stocks
(DOD, NATO) The arrangement whereby nations agree, normally in peacetime, to identify a proportion of selected items of their war reserve stocks to be called for by specified NATO commanders.

Echeloned displacement
(DOD, NATO) Movement of a unit from one position to another without discontinuing performance of its primary function. (DOD) Normally, the unit divides into two functional elements (base and advance and, while the base continues to operate, the advance element displaces to a new site where, after it becomes operational, it is joined by the base element. _z_usmilitary_z_)

EEFI
See essential elements of friendly information.

Electro-explosive device
(DOD) An explosive or pyrotechnic component that initiates an explosive, burning, electrical, or mechanical train and is activated by the application of electrical energy.

Electromagnetic radiation hazards
(DOD) Hazards caused by a transmitter/antenna installation that generates electromagnetic radiation in the vicinity of ordnance, personnel, or fueling operations in excess of established safe levels or increases the existing levels to a hazardous level; or a personnel, fueling, or ordnance installation located in an area that is illuminated by electromagnetic radiation at a level that is hazardous to the planned operations or occupancy. These hazards will exist when an electromagnetic field of sufficient intensity is generated to: a. Induce or otherwise couple currents and/or voltages of magnitudes large enough to initiate electroexplosive devices or other sensitive explosive components of weapon systems, ordnance, or explosive devices. b. Cause harmful or injurious effects to humans and wildlife.

Electronic reconnaissance
(DOD) The detection, identification, evaluation, and location of foreign electromagnetic radiations emanating from other than nuclear detonations or radioactive sources.

Electro-optical intelligence
(DOD) Intelligence other than signals intelligence derived from the optical monitoring of the electromagnetic spectrum from ultraviolet (0.01 micrometers) through far infrared (1,000 micrometers).

ELINT
(DOD) See electronic intelligence.

EMCON
See emission control.

Emergency relocation site
(DOD) A site located where practicable outside a prime target area to which all or portions of a civilian or military headquarters may be moved. As a minimum, it is manned to provide for the maintenance of the facility, communications, and data base. It should be capable of rapid activation, of supporting the initial requirements of the relocated headquarters for a predetermined period, and of expansion to meet wartime requirements of the relocated headquarters.

Emission control
(DOD) The selective and controlled use of electromagnetic, acoustic, or other emitters to optimize command and control capabilities while minimizing, for operations security: a. detection by enemy sensors; b. minimize mutual interference among friendly systems; and/or c. execute a military deception plan.

Encipher
(DOD) To convert plain text into unintelligible form by means of a cipher system.

Enemy capabilities
(DOD) Those courses of action of which the enemy is physically capable, and that, if adopted, will affect accomplishment of our mission. The term "capabilities" includes not only the general courses of action open to the enemy, such as attack, defense, or withdrawal, but also all the particular courses of action possible under each general course of action. "Enemy capabilities" are considered in the light of all known factors affecting military operations, including time, space, weather, terrain, and the strength and disposition of enemy forces. In strategic thinking, the capabilities of a nation represent the courses of action within the power of the nation for accomplishing its national objectives throughout the range of military operations.

EPA
(DOD) See evasion plan of action.

Espionage against the United States
(DOD) Overt, covert, or clandestine activity designed to obtain information relating to the national defense with intent or reason to believe that it will be used to the injury of the United States or to the advantage of a foreign nation. For espionage crimes see Chapter 37 of Title 18, United States Code.

Essential industry
(DOD) Any industry necessary to the needs of a civilian or war economy. The term includes the basic industries as well as the necessary portions of those other industries that transform the crude basic raw materials into useful intermediate or end products, e.g., the iron and steel industry, the food industry, and the chemical industry.

ETAC
See enlisted terminal attack controller.

EUSC
(DOD) See effective US control.

Evacuation policy
(DOD) 1. Command decision indicating the length in days of the maximum period of noneffectiveness that patients may be held within the command for treatment. Patients who, in the opinion of responsible medical officers, cannot be returned to duty status within the period prescribed are evacuated by the first available means, provided the travel involved will not aggravate their disabilities. 2. A command decision concerning the movement of civilians from the proximity of military operations for security and safety reasons and involving the need to arrange for movement, reception, care, and control of such individuals. 3. Command policy concerning the evacuation of unserviceable or abandoned materiel and including designation of channels and destinations for evacuated materiel, the establishment of controls and procedures, and the dissemination of condition standards and disposition instructions.

Executing commander (nuclear weapons)
DOD) A commander to whom nuclear weapons are released for delivery against specific targets or in accordance with approved plans.

Exfiltration
(DOD) The removal of personnel or units from areas under enemy control.

Expendable property
(DOD) Property that may be consumed in use or loses its identity in use and may be dropped from stock record accounts when it is issued or used.

Exploitation
(DOD, NATO) 1. Taking full advantage of success in battle and following up initial gains. 2. Taking full advantage of any information that has come to hand for tactical, operational, or strategic purposes. 3. An offensive operation that usually follows a successful attack and is designed to disorganize the enemy in depth.

Extended communications search
(DOD) In search and rescue operations, consists of contacting all possible sources of information on the missing craft, including physically checking possible locations such as harbors, marinas, and airport ramps. An extended communications search is normally conducted after a preliminary communications search has yielded no results and when the mission is upgraded to the alert phase.

External reinforcing force
(DOD, NATO) A reinforcing force which is principally stationed in peacetime outside its intended Major NATO Command area of operations.

Extraction zone
(DOD, NATO) A specified drop zone used for the delivery of supplies and/or equipment by means of an extraction technique from an aircraft flying very close to the ground.