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Military glossary - Letter U



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UAV
See unmanned aerial vehicle.

Ultraviolet imagery
(DOD) That imagery produced as a result of sensing ultraviolet radiations reflected from a given target surface.

Unexpended weapons or ordnance
(DOD) 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.

Unified Action Armed Forces
(DOD) 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.

Unintentional radiation exploitation
(DOD) Exploitation for operational purposes of noninformation-bearing elements of electromagnetic energy unintentionally emanated by targets of interest.

United States Armed Forces
(DOD) Used to denote collectively only the regular components of the Army, Navy, Air Force, Marine Corps, and Coast Guard.

Uited States Naval Ship
(DOD) A public vessel of the United States in the custody of the Navy and is: a. Operated by the Military Sealift Command and manned by a civil service crew. b. Operated by a commercial company under contract to the Military Sealift Command and manned by a merchant marine crew.

Unitized load
(DOD) 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.

Universal Joint Task List
(DOD) 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.

Unwarned exposed
(DOD, NATO) 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.

US Transportation Command coordinating instructions
(DOD) 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 data base. Instructions will ensure the target date movement requirements will be validated and available for scheduling.

UTM-grid
See also universal transverse mercator grid.

UXO
See unexploded explosive ordnance.