FM-3-09 Fire Support and Field Artillery Operations Download
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Glossary 30 April 2020 FM 3-09 Glossary-15 level I threat (Army) A small enemy force that can be defeated by those units normally operating in the echelon support area or by the perimeter defenses established by friendly bases and base clusters. (ATP 3-91) level II threat (Army) An enemy force or activities that can be defeated by a base or base cluster’s defensive capabilities when augmented by a response force. (ATP 3-91) level III threat (Army) An enemy force or activities beyond the defensive capability of both the base and base cluster and any local reserve or response force. (ATP 3-91) limit of advance (Army) A phase line used to control forward progress of the attack. (ADP 3-90) line of contact (Army) A general trace delineating the locations where friendly and enemy forces are engaged. (ADP 3-90) line of departure (DOD) In land warfare, a line designated to coordinate the departure of attack elements. Also called LD. (JP 3-31) lodgment (DOD) A designated area in a hostile or potentially hostile operational area that, when seized and held, makes the continuous landing of troops and material possible and provides the maneuver space for subsequent operations. (JP 3-18) main battle area (Army) The area where the commander intends to deploy the bulk of combat power and conduct decisive operations to defeat an attacking enemy. Also called MBA. (ADP 3-90) main effort (Army) A designated subordinate unit whose mission at a given point in time is most critical to overall mission success. (ADP 3-0) massed fire (DOD) Fire from a number of weapons directed at a single point or small area. (JP 3-02) measure of effectiveness (DOD) An indicator used to measure a current system state, with change indicated by comparing multiple observations over time. Also called MOE. (JP 5-0) measure of performance (DOD) An indicator used to measure a friendly action that is tied to measuring task accomplishment. Also called MOP. (JP 5-0) mensuration (DOD) The process of measurement of a feature or location on the Earth to determine an absolute latitude, longitude, and elevation. (JP 3-60) mil (Army) A unit of measure for angles that is based on the angle subtended by 1/6400 of the circumference of a circle. (TC 3-09.81) military deception (DOD) Actions executed to deliberately mislead adversary military, paramilitary, or violent extremist organization decision makers, thereby causing the adversary to take specific actions (or inactions) that will contribute to the accomplishment of the friendly mission. Also called MILDEC. (JP 3-13.4)