Military Glossary

Disruptive pattern
(DOD, NATO) In surveillance, an arrangement of suitably colored irregular shapes which, when applied to the surface of an object, is intended to enhance its camouflage.

DMZ
See demilitarized zone.

DOD support to counterdrug operations
(DOD) Support provided by the Department of Defense to law enforcement agencies to detect, monitor, and counter the production, trafficking, and use of illegal drugs.

Dominant user concept
(DOD) The concept that the Service which is the principal consumer will have the responsibility for performance of a support workload for all using Services.

Dose rate contour line
(DOD, NATO) A line on a map, diagram, or overlay joining all points at which the radiation dose rate at a given time is the same.

DPG
See Defense Planning Guidance.

Drop altitude
(DOD, NATO) The altitude above mean sea level at which airdrop is executed.

D-to-P assets required on D-day
(DOD) As applied to the D-to-P concept, this asset requirement represents those stocks that must be physically available on D-day to meet initial allowance requirements, to fill the wartime pipeline between the producers and users (even if P-day and D-day occur simultaneously), and to provide any required D-to-P consumption/production differential stockage. The D-to-P assets required on D-day are also represented as the difference between the D-to-P Materiel Readiness Gross Requirements and the cumulative sum of all production deliveries during the D-to-P period.

DTS
See Defense Transportation System.

Duckbutt
(DOD) An aircraft assigned to perform precautionary search and rescue or combat search and rescue missions, support deployment of single-engine aircraft, or meet other specialized situations. The aircraft can perform a secondary role as navigation aid to passing aircraft. The aircraft is electronically equipped to provide radar tracking, homing, and steering, and gives position and weather reports as required.

Dud probability
(DOD) The expected percentage of failures in a given number of firings.

Duty status - whereabouts unknown
(DOD) A transitory casualty status, applicable only to military personnel, that is used when the responsible commander suspects the member may be a casualty whose absence is involuntary, but does not feel sufficient evidence currently exists to make a definite determination of missing or deceased.

DWRIA
See died of wounds received in action.

Dynamic pressure
(DOD, NATO) Pressure resulting from some medium in motion, such as the air following the shock front of a blast wave.

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