text: Military Terms
  implied task — (Army) A task that must be performed to accomplish a specified task or mission but is not stated
  in the higher headquarters’ order. (FM 5-0)
  improvisation — The ability to adapt sustainment operations to unexpected situations or circumstances
  affecting a mission. (ADP 4-0)
  improvised explosive device — (DOD) A weapon that is fabricated or emplaced in an unconventional manner
  incorporating destructive, lethal, noxious, pyrotechnic, or incendiary chemicals. (JP 3-42) Also called IED.
  incapacitating agent — (DOD) A chemical agent, which produces temporary disabling conditions that can be
  physical or mental and persist for hours or days after exposure to the agent has ceased. (JP 3-11)
  incident — (DOD) An occurrence, caused by either human action or natural phenomena, that requires action to
  prevent or minimize loss of life or damage to, loss of, or other risks to property, information, and/or natural
  resources. (JP 3-28)
  incident awareness and assessment — (DOD) The processing, analysis, and dissemination of information
  collected or acquired through the authorized use of intelligence, surveillance, and reconnaissance, and other
  intelligence, intelligence-related, and/or non-intelligence capabilities, during defense support of civil authorities
  and National Guard domestic operations. (JP 3-28) Also called IAA.
  incident command system— (DOD) A standardized on-scene emergency management construct designed to
  aid in the management of resources during incidents. (JP 3-28) Also called ICS.
  incident management — (DOD) A national comprehensive approach to preventing, preparing for, responding
  to, and recovering from terrorist attacks, major disasters, and other emergencies. (JP 3-28)
  indications — (DOD) In intelligence usage, information in various degrees of evaluation, all of which bear on the
  intention of a potential enemy to adopt or reject a course of action. (JP 2-0)
  indicator — (DOD) 1. In intelligence usage, an item of information which reflects the intention or capability of an
  adversary to adopt or reject a course of action. (JP 2-0) 2. In operations security usage, data derived from
  friendly detectable actions and open-source information that an adversary can interpret and piece together to
  reach conclusions or estimates of friendly intentions, capabilities, or activities. (JP 3-13.3) 3. In the context of
  assessment, a specific piece of information that infers the condition, state, or existence of something, and
  provides a reliable means to ascertain performance or effectiveness. (JP 5-0)
  indigenous populations and institutions — (DOD) The societal framework of an operational environment
  including citizens; legal and illegal immigrants; dislocated civilians; and governmental, tribal, ethnic, religious,
  commercial, and private organizations and entities. (JP 3-57) Also called IPI.
  individual protective equipment — (DOD) The personal clothing and equipment provided to all military,
  government civilians, and contractors authorized to accompany the force required to protect an individual from
  chemical, biological, and radiological hazards and some nuclear hazards. (JP 3-11) Also called IPE.
  infiltration — (Army) A form of maneuver in which an attacking force conducts undetected movement through or
  into an area occupied by enemy forces. (FM 3-90)
  infiltration lane — A control measure that coordinates forward and lateral movement of infiltrating units and
  fixes fire planning responsibilities. (FM 3-90)
  influent — Water flowing into a reservoir, basin, or treatment operation. (ATP 4-44)
  information — In the context of decision making, data that has been organized and processed in order to
  provide context for further analysis. (ADP 6-0)
  information collection — An activity that synchronizes and integrates the planning and employment of sensors
  and assets as well as the processing, exploitation, and dissemination systems in direct support of current and
  future operations. (FM 3-55)
  information dimension — The content and data that individuals, groups, and information systems communicate
  and exchange, as well as the as the analytics and technical processes used to exchange information within an
  operational environment. (FM 3-0)
  information environment — (DOD) The aggregate of individuals, organizations, and systems that collect,
  process, disseminate, or act on information. (JP 3-04)
  information for effect — Factual information used in publication or broadcast to negatively affect perceptions
  and/or damage credibility and capability of the targeted group. (FM 3-53)
  information fratricide — Adverse effects on the information environment resulting from a failure to effectively
  synchronize the employment of multiple information related capabilities which may impede the conduct of
  friendly operations or adversely affect friendly forces. (FM 3-13)
  information management — (Army) The science of using procedures and information systems to collect,
  process, store, display, disseminate, and protect data, information, and knowledge products. (ADP 6-0) See
  also situational understanding.