text: Chapter 1
  information requirements — (DOD) In intelligence usage, those items of information regarding the adversary
  and other relevant aspects of the operational environment that need to be collected and processed in order to
  meet the intelligence requirements of a commander. (JP 2-0) Also called IR.
  informational considerations — Those aspects of the human, information, and physical dimensions that affect
  how humans and automated systems derive meaning from, use, act upon, and are impacted by information.
  (FM 3-0)
  infrastructure reconnaissance — A multidisciplinary reconnaissance focused on gathering technical
  information on the condition and capacity of existing public systems, municipal services, and facilities within an
  assigned area of operations. (ATP 3-34.81)
  initial reception point — (DOD) In personnel recovery, a secure area or facility under friendly control where
  initial reception of recovered isolated personnel can safely take place. (JP 3-50)
  inland petroleum distribution system — (DOD) A multi-product system consisting of both commercially
  available and military standard petroleum equipment that can be assembled by military personnel and, when
  assembled into an integrated petroleum distribution system, provides the military with the capability required to
  support an operational force with bulk fuels. (JP 4-03) Also called IPDS.
  inpatient — A person admitted to and treated within a Role 3 and 4 hospital and who cannot be returned to duty
  within the same calendar day. (ATP 4-02.10)
  institutional training domain — The Army’s institutional training and education system, which primarily
  includes training base centers and schools that provide initial training and subsequent professional military
  education for Soldiers, military leaders, and Army Civilians. (ADP 7-0)
  instruments of national power — (DOD) All of the means available to the government in its pursuit of national
  objectives. They are expressed as diplomatic, economic, informational and military. (JP 1 Volume 1)
  insurgency — (DOD) The organized use of subversion and violence to seize, nullify, or challenge political
  control of a region. Insurgency can also refer to the group itself. (JP 3-24)
  integrated air and missile defense — (DOD) The integration of capabilities and overlapping operations to
  defend the homeland and United States national interests, protect the joint force, and enable freedom of action
  by negating an enemy’s ability to create adverse effects from their air and missile capabilities. (JP 3-01) Also
  called IAMD.
  integration — (DOD) 1. In force protection, the synchronized transfer of units into an operational commander's
  force prior to mission execution. 2. The arrangement of military forces and their actions to create a force that
  operates by engaging as a whole. 3. In photography, a process by which the average radar picture seen on
  several scans of the time base may be obtained on a print, or the process by which several photographic
  images are combined into a single image. (JP 1 Volume 1) (Army) Combining all of the sustainment elements
  within operations assuring unity of command and effort. (ADP 4-0)
  intelligence — (DOD) 1. The product resulting from the collection, processing, integration, evaluation, analysis,
  and interpretation of available information concerning foreign nations, hostile or potentially hostile forces or
  elements, or areas of actual or potential operations. 2. The activities that result in the product. 3. The
  organizations engaged in such activities. (JP 2-0)
  intelligence analysis — The process by which collected information is evaluated and integrated with existing
  information to facilitate intelligence production. (ADP 2-0)
  intelligence community — (DOD) All departments or agencies of a government that are concerned with
  intelligence activity, either in an oversight, managerial, support, or participatory role. (JP 2-0) Also called IC.
  intelligence discipline — (DOD) A well-defined area of intelligence planning, collection, processing,
  exploitation, analysis, and reporting using a specific category of technical or human resources. (JP 2-0)
  intelligence estimate — (DOD) The appraisal, expressed in writing or orally, of available intelligence relating to
  a specific situation or condition with a view to determining the courses of action open to the enemy or
  adversary and the order of probability of their adoption. (JP 2-0)
  intelligence handover line — A control measure between two friendly units used to pass responsibility for the
  conduct of information collection against a specific enemy force. (FM 2-0)
  intelligence preparation of the operational environment — The systematic process of analyzing the mission
  variables of enemy, terrain, weather, and civil considerations in an area of interest to determine their effect on
  operations. (FM 2-0)
  intelligence reach — The activity by which intelligence organizations proactively and rapidly access information
  from, receive support from, and conduct direct collaboration and information sharing with other units and
  agencies, both within and outside the area of operations, unconstrained by geographic proximity, echelon, or
  command. (ADP 2-0)