MCRP 12-10B.1, page 364

F fire supportCAssistance to elements of the Marine air-ground task force engaged with the enemy rendered by other firing units, including (but not limited to) artillery, mortars, naval surface fire support, and offensive air support. (FMFRP 0-14) fixC1. A tactical task in which actions are taken to prevent the enemy from moving any part of his/her forces either from a specific location or for a specific period of time by holding or surrounding them to prevent their withdrawal for use elsewhere. 2. A tactical obstacle effect that integrates fire planning and obstacle effort to slow an attacker within a specified areaCnormally an engagement area. (MCRP 5-2A) H helicopterborne operationCA military action in which combat forces and their equipment maneuver about the battlefield by helicopters or vertical-landed aircraft. Aviation activities are under the control of the aviation combat element commander who is assigned in direct or general support of one or more combat element(s). (FMFRP 0-14) holdC1. To maintain or retain possession of by force, as a position or an area. 2. In an attack, to exert sufficient pressure to prevent movement or redisposition of enemy forces. (Joint Pub 1-02) I infiltrationCThe movement through or into an area or territory occupied by either friendly or enemy troops or organizations. The movement is made, either by small groups or by individuals, at extended or irregular intervals. When used in connection with the enemy, it infers that contact is avoided. (Joint Pub 1-02) isolateCA tactical task given to a unit to seal off (both physically and psychologically) an enemy from his/her sources of support, to deny an enemy freedom of movement, and prevent an enemy unit from having contact with other enemy forces. An enemy must not be allowed sanctuary within his/her present position. (MCRP 5-2A) L linkupCAn operation wherein two friendly ground forces join together in a hostile area. (FMFRP 0-14) M Marine air-ground task force (MAGTF)C A task organization of Marine forces (division, aircraft wing, and service support groups) under a single command and structured to accomplish a specific mission. (Joint Pub 1-02) military operations on urbanized terrain (MOUT)CAll military actions that are planned and conducted on a topographical complex and its adjacent natural terrain where manmade construction is the dominant feature. It includes combat in cities, which is that portion of MOUT involving house- Military Operations on Urbanized Terrain K - 5 II. Definitions