text: Chapter 1
  hostile environment — (DOD) Operational environment in which host government forces, whether opposed to
  or receptive to operations that a unit intends to conduct, do not have control of the territory and population in
  the intended operational area. (JP 3-0)
  hostile intent — (DOD) The threat of imminent use of force against the United States, United States forces, or
  other designated persons or property. (JP 3-01)
  host-nation support — (DOD) Civil and/or military assistance rendered by a nation to foreign forces within its
  territory during peacetime, crises or emergencies, or war based on agreements mutually concluded between
  nations. (JP 4-0) Also called HNS.
  hub — (DOD) An organization that sorts and distributes inbound cargo from wholesale supply sources (airlifted,
  sealifted, and ground transportable) and/or from within the theater. (JP 4-09) (Army) An organization that sorts
  and distributes inbound cargo from multiple supply sources. (ATP 4-11)
  hub and spoke distribution — (DOD) A physical distribution system, in which a major port serves as a central
  point from which cargo is moved to and from several radiating points to increase transportation efficiencies
  and in-transit visibility. (JP 4-09)
  human dimension — Encompasses people and the interaction between individuals and groups, how they
  understand information and events, make decisions, generate will, and act within an operational environment.
  (FM 3-0)
  human factors — (DOD) The physical, cultural, psychological, and behavioral attributes of an individual or
  group that influence perceptions, understanding, and interactions. (JP 2-0)
  human intelligence — (DOD) A category of intelligence derived from information collected and provided by
  human sources. (JP 2-0) (Army) The collection by a trained human intelligence collector of foreign information
  from people and multimedia to identify elements, intentions, composition, strength, dispositions, tactics,
  equipment, and capabilities. (ADP 2-0) Also called HUMINT.
  humanitarian and civic assistance — (DOD) Assistance to the local populace, specifically authorized by Title
  10, United States Code, Section 401, and funded under separate authorities, provided by predominantly
  United States forces in conjunction with military operations. (JP 3-29) Also called HCA.
  humanitarian mine action — (DOD) Activities that strive to reduce the social, economic, and environmental
  impact of land mines, unexploded ordnance, and small arms ammunition. (JP 3-15)
  humanity — The law of armed conflict principle that forbids inflicting suffering, injury, or destruction unnecessary
  to accomplish a legitimate military purpose. Also called unnecessary suffering or superfluous injury. (FM 6-27)
  hybrid threat — The diverse and dynamic combination of regular forces, irregular forces, terrorist forces, or
  criminal elements unified to achieve mutually benefitting effects. (ADP 3-0)
  hypo-chlorination — The application of a hypo-chlorinator to feed calcium or sodium hypochlorite. (ATP 4-44)
  —I—
  identification — (DOD) 1. The process of determining the friendly or hostile character of an unknown detected
  contact. 2. In arms control, the process of determining which nation is responsible for the detected violations of
  any arms control measure. 3. In ground combat operations, discrimination between recognizable objects as
  being friendly or enemy, or the name that belongs to the object as a member of a class. (JP 3-01) Also called
  ID.
  identity intelligence — (DOD) The intelligence resulting from the processing of identity attributes concerning
  individuals, groups, networks, or populations of interest. (JP 2-0) Also called I2.
  imagery intelligence — (DOD) The technical, geographic, and intelligence information derived through the
  interpretation or analysis of imagery and collateral materials. (JP 2-0) Also called IMINT.
  immediate decontamination — (DOD) Decontamination carried out by individuals immediately upon becoming
  contaminated to save lives, minimize casualties, and limit the spread of contamination. (JP 3-11)
  immediate recovery operations — Initial search and recovery operations performed by the unit recovery team
  to search for and recover human remains and personal effects during the combat phase when the tactical
  situation permits a recovery with the forces at hand without detailed planning or coordination. (ATP 4-46)
  immediate response authority — (DOD) A Federal military commander’s, Department of Defense component
  head’s, and/or responsible Department of Defense civilian official’s authority temporarily to employ resources
  under their control, subject to any supplemental direction provided by higher headquarters, and provide those
  resources to save lives, prevent human suffering, or mitigate great property damage in response to a request
  for assistance from civil authority, under imminently serious conditions when time does not permit approval
  from a higher authority within the United States. Immediate response authority does not permit actions that
  would subject civilians to the use of military power that is regulatory, prescriptive, proscriptive, or compulsory.
  (DODD 3025.18)