All official U.S. DoD military terms, and their definitions, beginning with the letter U.
Currently showing all terms for your selected Letter Group of U. You can always go back to the index to make another selection.
That imagery produced as a result of sensing ultraviolet radiations reflected from a given target surface.
An inclusive term (not a casualty status) applicable to personnel whose person or remains are not recovered or otherwise accounted for following hostile action. Commonly used when referring to personnel who are killed in action and whose bodies are not recovered. See also casualty; casualty category; casualty status; casualty type.
Those immediate targets that are unknown or not expected to exist in an operational area. See also operational area; target. (JP 3-60)
Operational environment in which host government forces, whether opposed to or receptive to operations that a unit intends to conduct, do not have totally effective control of the territory and population in the intended operational area. (JP 3-0)
(*) A demolition target for which charges have been calculated, prepared, and stored in a safe place, and for which execution procedures have been established. See also demolition target.
(*) Official matter which does not require the application of security safeguards, but the disclosure of which may be subject to control for other reasons. See also classified matter.
Evader recovery conducted by directed unconventional warfare forces, dedicated extraction teams, and/or unconventional assisted recovery mechanisms operated by guerrilla groups or other clandestine organizations to seek out, contact, authenticate, support, and return evaders to friendly control. Also called UAR. See also assisted recovery; authenticate; evader; recovery. (JP 3-50.3)
A compartmented special operations forces (SOF) facility suitably staffed by supervisory personnel and tactical planners to coordinate, synchronize and de-conflict non-conventional assisted recovery (NAR) operations on a 24-hour basis within the geographical area assigned to the joint force commander. The unconventional assisted recovery coordination center (UARCC) is an integral part of the joint force commander?s (JFC?s) comprehensive personnel recovery architecture and the functional equivalent of a component rescue coordination center. When directed by the JFC, through the joint force special operations component commander, the special operations command Operations Directorate establishes the UARCC (normally within the Joint Operations Center (JOC)) to serve as the focal point for all NAR operations. The UARCC interfaces and coordinates with the JOC, joint search and rescue center, component rescue coordination centers (RCCs) (including the SOF RCC) and the special activities cell. Also called UARCC. See also joint operations center; joint search and rescue center; special operations forces; unconventional assisted recovery. (JP 3-05.1)
That entity, group of entities, or organizations within enemy-held or hostile areas that operates to receive, support, move, and exfiltrate military personnel or selected individuals to friendly control. Also called UARM. See also assisted recovery; recovery; unconventional assisted recovery. (JP 3-50.3)
Evader recovery operations conducted by unconventional forces. See also evader; recovery operations. (JP 3-50.3)
A broad spectrum of military and paramilitary operations, normally of long duration, predominantly conducted through, with, or by indigenous or surrogate forces who are organized, trained, equipped, supported, and directed in varying degrees by an external source. It includes, but is not limited to, guerrilla warfare, subversion, sabotage, intelligence activities, and unconventional assisted recovery. Also called UW. (JP 3-05)
US forces having an existing unconventional warfare capability.
Operations conducted to establish battlespace dominance in the underwater environment, which permits friendly forces to accomplish the full range of potential missions and denies an opposing force the effective use of underwater systems and weapons. It includes offensive and defensive submarine, antisubmarine, and mine warfare operations. Also called USW. See also antisubmarine warfare; mine warfare.
See flatted cargo.
(*) The destruction or neutralization of underwater obstacles; this is normally accomplished by underwater demolition teams.
A group of officers and enlisted specially trained and equipped for making hydrographic reconnaissance of approaches to prospective landing beaches; for effecting demolition of obstacles and clearing mines in certain areas; locating, improving, and marking of useable channels; channel and harbor clearance; acquisition of pertinent data during pre-assault operations, including military information; observing the hinterland to gain information useful to the landing force; and for performing miscellaneous underwater and surface tasks within their capabilities. Also called UDT.
See replenishment at sea.
(*) A task force of fleet auxiliaries (consisting of oilers, ammunition ships, stores issue ships, etc.) adequately protected by escorts furnished by the responsible operational commander. The function of this force is to provide underway logistic support for naval forces. See also force.
A task group configured to provide logistic replenishment of ships underway by transfer-at-sea methods.
Airborne weapons that have not been subjected to attempts to fire or drop and are presumed to be in normal operating conditions and can be fired or jettisoned if necessary. See also ordnance. (JP 3-04.1)
(*) Explosive ordnance which has been primed, fused, armed or otherwise prepared for action, and which has been fired, dropped, launched, projected, or placed in such a manner as to constitute a hazard to operations, installations, personnel, or material and remains unexploded either by malfunction or design or for any other cause. Also called UXO. See also explosive ordnance. (JP 3-15)
A command comprised of forces of a single Service.
A broad generic term that describes the wide scope of actions (including the synchronization of activities with governmental and nongovernmental agencies) taking place within unified commands, subordinate unified commands, or joint task forces under the overall direction of the commanders of those commands. See also joint task force; subordinate unified command; unified command. (JP 0-2)
A publication setting forth the policies, principles, doctrines, and functions governing the activities and performance of the Armed Forces of the United States when two or more Military Departments or Service elements thereof are acting together. Also called UNAAF. (JP 0-2)
See unified command. (JP 0-2)
A command with a broad continuing mission under a single commander and composed of significant assigned components of two or more Military Departments that is established and so designated by the President, through the Secretary of Defense with the advice and assistance of the Chairman of the Joint Chiefs of Staff. Also called unified combatant command. See also combatant command; subordinate unified command. (JP 3-31)
The document, approved by the President, that sets forth basic guidance to all unified combatant commanders; establishes their missions, responsibilities, and force structure; delineates the general geographical area of responsibility for geographic combatant commanders; and specifies functional responsibilities for functional combatant commanders. Also called UCP. See also combatant command; combatant commander. (JP 0-2)
The Army, Navy,Air Force, Marine Corps, Coast Guard, National Oceanic and Atmospheric Administration, and Public Health Services. See also Military Department; Military Service.
An arms control course of action taken by a nation without any compensating concession being required of other nations.
Exploitation for operational purposes of noninformation-bearing elements of electromagnetic energy unintentionally emanated by targets of interest.
Intelligence derived from the collection and analysis of noninformation-bearing elements extracted from the electromagnetic energy unintentionally emanated by foreign devices, equipment, and systems, excluding those generated by the detonation of nuclear weapons. Also called RINT. See also intelligence. (JP 2-0)
1. Any military element whose structure is prescribed by competent authority, such as a table of organization and equipment; specifically, part of an organization. 2. An organization title of a subdivision of a group in a task force. 3. A standard or basic quantity into which an item of supply is divided, issued, or used. In this meaning, also called unit of issue. 4. With regard to Reserve Components of the Armed Forces, denotes a Selected Reserve unit organized, equipped, and trained for mobilization to serve on active duty as a unit or to augment or be augmented by another unit. Headquarters and support functions without wartime missions are not considered units.
Those aircraft provided an aircraft unit for the performance of a flying mission. See also aircraft.
See combat readiness.
(*) The degree of commitment of any unit designated and categorized as a force allocated to NATO.
A list of actual units by unit identification code designated to fulfill requirements of a force list.
A six-character, alphanumeric code that uniquely identifies each Active, Reserve, and National Guard unit of the Armed Forces. Also called UIC.
A seven-character alphanumeric code that describes a unique increment of a unit deployment, i.e., advance party, main body, equipment by sea and air, reception team, or trail party, in a Joint Operation Planning and Execution System time-phased force and deployment data. Also called ULN.
(*) The loading of troop units with their equipment and supplies in the same vessels, aircraft, or land vehicles. See also loading.
A temporary organization activated by major subordinate commands and subordinate units during deployment to control and manage marshalling and movement. Also called UMCC. See also deployment; marshaling; unit. (JP 4-01.8)
A unit equipment and/or supply listing containing corresponding transportability data. Tailored unit movement data has been modified to reflect a specific movement requirement. Also called UMD.
In its special storage meaning, refers to the quantity of an item; as each number, dozen, gallon, pair, pound, ream, set, yard. Usually termed unit of issue to distinguish from ?unit price.? See also unit.
A table included in the loading plan of a combat-loaded ship as a recapitulation of totals of personnel and cargo by type, listing cubic measurements and weight. Also called UP&TT.
The cost or price of an item of supply based on the unit of issue.
Prescribed quantities of supplies carried by a unit as a reserve to cover emergencies. See also reserve supplies.
An authorized and scheduled period of unit inactive duty training of a prescribed length of time.
A Joint Chiefs of Staff developed and assigned code, consisting of five characters that uniquely identify a ?type unit.?
All equipment and supplies that are assigned to a specific unit or that are designated as accompanying supplies. The logistic dimensions of these items are contained in the type unit characteristics file standard.
Includes the land area, internal waters, territorial sea, and airspace of the United States, including the following: a. US territories, possessions, and commonwealths; and b. Other areas over which the US Government has complete jurisdiction and control or has exclusive authority or defense responsibility.
Used to denote collectively only the regular components of the Army, Navy, Air Force, Marine Corps, and Coast Guard. See also Armed Forces of the United States.
The national center of information in the United States for enemy and US civilian internees.
That shipping under US flag and selected ships under foreign flag considered to be under ?effective US control,? i.e., that can reasonably be expected to be made available to the United States in time of national emergency. See also effective US controlled ships.
A program designed to enhance joint and combined combat effectiveness through standardization of message formats, data elements, and information exchange procedures. Standard message formats with standard information content provides all tactical commanders at the joint interface with a common playing field and a common language. Also called USMTF.
Training that is provided to foreign nationals in United States Military Service schools and installations under authority other than the Foreign Assistance Act of 1961.
A public vessel of the United States that is in the custody of the Navy and is: a. Operated by the Military Sealift Command and manned by a civil service crew; or b. Operated by a commercial company under contract to the Military Sealift Command and manned by a merchant marine crew. Also called USNS. See also Military Sealift Command. (JP 3-02.2)
The national center of information in the United States for enemy and US prisoners of war.
The unified organization of signals intelligence activities under the direction of the Director, National Security Agency/Chief, Central Security Service. It consists of the National Security Agency/Central Security Service, the components of the Military Services authorized to conduct signals intelligence, and such other entities (other than the Federal Bureau of Investigation) authorized by the National Security Council or the Secretary of Defense to conduct signals intelligence activities. Also called USSS. See also counterintelligence. (JP 2-01.2)
The unified command with the mission to provide strategic air, land, and sea transportation and common-user port management for the Department of Defense across the range of military operations. Also called USTRANSCOM. See also global transportation network; single port manager; transportation component command; unified command. (JP 4-01)
A single item or a number of items packaged, packed, or arranged in a specified manner and capable of being handled as a unit. Unitization may be accomplished by placing the item or items in a container or by banding them securely together. See also palletized unit load.
A menu of capabilities (mission-derived tasks with associated conditions and standards, i.e., the tools) that may be selected by a joint force commander to accomplish the assigned mission. Once identified as essential to mission accomplishment, the tasks are reflected within the command joint mission essential task list. Also called UJTL. (JP 3-33)
A military grid prescribed for joint use in operations in limited areas and used for operations requiring precise position reporting. It covers areas between the 80 degree parallels and the poles.
A worldwide postal organization to which the United States and most other countries are members. The exchange of mail, except parcel post, between the United States and other nations is governed by the provisions of the Universal Postal Union convention. Also called UPU.
A measure of time that conforms, within a close approximation, to the mean diurnal rotation of the Earth and serves as the basis of civil timekeeping. Universal Time (UT1) is determined from observations of the stars, radio sources, and also from ranging observations of the moon and artificial Earth satellites. The scale determined directly from such observations is designated Universal Time Observed (UTO); it is slightly dependent on the place of observation. When UTO is corrected for the shift in longitude of the observing station caused by polar motion, the time scale UT1 is obtained. When an accuracy better than one second is not required, Universal Time can be used to mean Coordinated Universal Time. Also called ZULU time. Formerly called Greenwich Mean Time.
(*) A grid coordinate system based on the transverse mercator projection, applied to maps of the Earth?s surface extending to 84 degrees N and 80 degrees S latitudes. Also called UTM grid.
1. A code meaning ?information not available.? 2. An unidentified target. An aircraft or ship that has not been determined to be hostile, friendly, or neutral using identification friend or foe and other techniques, but that must be tracked by air defense or naval engagement systems. 3. An identity applied to an evaluated track that has not been identified. See also assumed friend; friend; hostile; neutral; suspect.
Not to be used. See general war.
A powered, aerial vehicle that does not carry a human operator, uses aerodynamic forces to provide vehicle lift, can fly autonomously or be piloted remotely, can be expendable or recoverable, and can carry a lethal or nonlethal payload. Ballistic or semiballistic vehicles, cruise missiles, and artillery projectiles are not considered unmanned aerial vehicles. Also called UAV. (JP 3-52)
Those immediate targets that are known to exist in an operational area but are not detected, located, or selected for action in sufficient time to be included in the normal targeting process. See also immediate targets; operational area; target. (JP 3-60)
Not to be used. See escalation.
(*) The period in the early days of war when convoys are instituted on an ad hoc basis before the introduction of convoy schedules in the regular convoy phase.
The removal of cargo from a container. Also called stripping.
(*) A cargo loaded in peacetime which is not required by the consignee country in wartime.
(*) The vulnerability of friendly forces to nuclear weapon effects. In this condition, personnel are assumed to be standing in the open at burst time, but have dropped to a prone position by the time the blast wave arrives. They are expected to have areas of bare skin exposed to direct thermal radiation, and some personnel may suffer dazzle. See also warned exposed; warned protected.
The three distinguishing characteristics of urban areas: complex manmade physical terrain, a population of significant size and density, and an infrastructure upon which the area depends. See also infrastructure; joint urban operations. (JP 3-06)
(*) In naval mine warfare, the laying of mines with correct spacing but not in the ordered or planned positions. The mines may be laid either inside or outside the allowed area in such positions that they will hamper the movements of the enemy more than those of our own forces.
A category of immediate mission request that is lower than emergency priority but takes precedence over ordinary priority; e.g., enemy artillery or mortar fire that is falling on friendly troops and causing casualties or enemy troops or mechanized units moving up in such force as to threaten a breakthrough. See also immediate mission request; priority of immediate mission requests.
US commercial aircraft, spacecraft, flag shipping, offshore, and land-based assets located landward of the outer limit of the continental shelf of the United States, its territories, and possessions, and excluding those privately owned oil rigs operating under foreign license in disputed offshore areas.
A senior US officer in a foreign country representing the Secretary of Defense, the Chairman of the Joint Chiefs of Staff, and the commander of the unified command that coordinates the security matters regarding in-country, non-combat Department of Defense (DOD) elements (i.e., DOD personnel and organizations under the command of a combatant commander but not assigned to, or attached to, the combatant commander). Also called USDR.
All Armed Forces (including the Coast Guard) of the United States, any person in the Armed Forces of the United States, and all equipment of any description that either belongs to the US Armed Forces or is being used (including Type I and II Military Sealift Command vessels), escorted, or conveyed by the US Armed Forces.
US citizen and US permanent and temporary legal resident aliens.
For intelligence purposes, a US person is defined as one of the following: (1) a US citizen; (2) an alien known by the intelligence agency concerned to be a permanent resident alien; (3) an unincorporated association substantially composed of US citizens or permanent resident aliens; or (4) a corporation incorporated in the United States, except for those directed and controlled by a foreign government or governments. (JP 2-01.2)
Instructions of the US Transportation Command that establish suspense dates for selected members of the joint planning and execution community to complete updates to the operation plan database. Instructions will ensure that the target date movement requirements will be validated and available for scheduling.
Policy guidance issued by the Commandant, US Coast Guard, on the use of force and weapons.
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