text: Chapter 3
  impact their targets as well as cueing other land, air, sea-based missile defense sensors, and
  weapon systems.
  3-87. The Space-Based Infrared System, and the legacy Defense Support Program satellites make up the
  Space-Based Infrared System constellation which provides space-based missile warning. The Space-Based
  Infrared System constellation host sensors which detect infrared energy (heat) from sources such as a missiles
  booster exhaust. Data is transmitted to the Space-Based Infrared System Mission Control Station and the
  theater event system elements of missile warning.
  3-88. The theater event system provides assured missile warning to the geographic combatant commands.
  Army space operations are responsible to provide in-theater missile warning. The theater missile warning
  detachments, which operate the JTAGS, are strategically positioned worldwide to receive data directly from
  Space-Based Infrared System satellites in their fields of view. The theater missile warning detachments
  process the data to identify missile launch points, trajectory, and locations where warheads are likely to
  impact. The detachments disseminate ballistic missile warning information to theater command centers.
  Theater missile warning detachments are located to optimize data receipt and theater dissemination.
  3-89. Space-based missile warning detection capabilities assist commanders by providing early warning of
  enemy ballistic missile launches via the theater event system reporting. The theater event system supports
  the missile defense operational elements of active defense, passive defense, attack operations, command and
  control, and intelligence architectures. The theater event system broadcasts data to forward units where the
  air and missile defense section or element coordinates warning distribution to subordinate units and allies.
  The theater event system warning element directly supports command and control, fires, intelligence, and
  maneuver operations.
  * Identification of missile type supporting passive defense. This may help determine the appropriate
  chemical, biological, radiological, and nuclear protection measures, if the missile is capable of
  carrying such warhead and if maneuver units need to go to a higher mission-oriented protective
  posture level.
  * Predicted impact point and time supporting passive defense. The theater event system warns units
  near the impact point to take protective action. A significant implication is maneuver units
  confirmed to be not in danger can continue normal operations.
  * Estimated launch point supporting attack operations. This provides target intelligence in support
  of deep attack operations and active defense. The commander may employ combat maneuver
  forces and fires to attack mobile launch systems, their support areas, and installations. The
  commander may also employ fires to attack incoming missiles.
  3-90. Information provided by space-based sensors support strategic and theater missile warning activities.
  Space-based sensors support technical intelligence provided to combatant commands, force planners, and
  policy makers. It contributes to scientific and technical intelligence on foreign threat systems, selected space
  programs or systems, and supports materiel acquisition. This information supports commanders in executing
  their intelligence warfighting function in a near real time manner, and influences their decision making
  process through the provision of a more complete COP.
  3-91. To help influence theater activity, space-based missile detection capabilities assist the unit
  commander by providing early warning of enemy launches. The scope and capabilities of the missile warning
  systems aids in deterring the enemy from conducting threat missile launch activities. This helps unit
  commanders assess current and future risk, and gives commanders the ability to shape and influence current
  engagements. Missile detection helps develop joint, interagency, intergovernmental, and multinational
  partner capacity.
  3-92. Shared Early Warning. The U.S. participates in the shared early warning construct to exchanges
  launch detection and missile warning information with specific unified action partners and some treaty
  participating nations. Shared early warning permits joint forces to provide missile warning to allied nations,
  civilian populations of foreign partners, and neutral parties. The objective of shared early warning is the
  continuous exchange of missile early warning notifications. Information derived from missile warning
  sensors allows recipients to take protective measures to help protect noncombatants. This helps stabilize
  political and military situations. Information on missile launches is provided in near real-time and is the same