text: Chapter 5
  5-135. Soldiers may be evacuated to an MTF where the casualty liaison element, in coordination with the
  Soldiers' unit, may generate the Defense Casualty Information Processing System report for submission to
  the theater casualty information center. Information includes date and time of the casualty, circumstances,
  and location. Casualty liaison elements are allocated to the TPOC operating the theater casualty information
  center. See FM 1-0 for additional information.
  Casualty Liaison Element
  5-136. The casualty liaison element provides accurate and timely casualty reporting and tracking information
  at Role 3 MTFs, General Officer commands, and the ASCC human resources operations center. Casualty
  liaison elements facilitate real-time casualty information for commanders. Not only do casualty liaison
  elements provide accurate casualty information, but they also act as a liaison for each affected commander
  and unit. Casualty liaison elements provide updated status reports to affected units and inform them when
  Soldiers are evacuated from theater. They also assist with coordinating a Soldier's return to duty.
  5-137. The casualty liaison element’s primary function is to ensure timely reporting of casualty information
  to the theater casualty information center and the unit S-1. The theater casualty information center verifies
  the information and sends it to the Casualty and Mortuary Affairs Operations Division to coordinate
  notification actions through the appropriate CONUS and/or OCONUS casualty assistance center. Casualty
  liaison elements supporting G-1s assist commanders in maintaining accurate casualty information throughout
  the duration of an operation.
  5-138. The casualty liaison elements begin coordination with patient administration sections to handle those
  casualties evacuated to military or civilian hospitals within their AO. Casualty liaison elements located at a
  Role 3 MTF review each patient's status, document newly arrived patients, and collect casualty-related
  information for entry into the Defense Casualty Information Processing System. The Joint Patient Tracking
  Application assists G-1s and S-1s with casualty tracking and Soldier location information.
  5-139. Mass casualty incidents or transfer of injured personnel may require treatment at hospitals outside of
  Theater assets and in friendly host nation medical treatment facilities. The casualty liaison elements placed
  in those facilities where needed are essential for providing updated information on all incapacitated, injured,
  and ill personnel through the theater casualty information center to the Casualty and Mortuary Affairs
  Operations Division. The Casualty and Mortuary Affairs Operations Division then notifies the installation
  casualty assistance center, who in turn provides updated information to the primary next of kin. Casualty
  liaison elements also provide updated information as personnel transit through MTFs.
  5-140. The Office of the Surgeon General is responsible for identifying the MTFs within the sustaining base
  to treat patients in the AO through MTF sourcing, and outside of the deployed AO for patients who evacuate
  from the deployed AO. Once identified, the theater casualty assistance center ensures the casualty liaison
  element network is established, positioned, and resourced to support the deployed AO for casualty reporting.
  See FM 1-0 for additional information.
  SECTION II – SUSTAINMENT OF DEFENSIVE OPERATIONS
  5-141. This section provides an overview of sustainment of defensive operations and addresses fundamental
  principles of sustainment during the defense. It also provides additional planning considerations needed for
  sustainment support of defensive operations. A defensive operation is an operation to defeat an enemy attack,
  gain time, economize forces, and develop conditions favorable for offensive or stability operations (ADP
  3-0). Although a defensive operation normally does not achieve victory, it sets the conditions necessary to
  regain the initiative and achieve other goals.
  OVERVIEW OF SUSTAINING DEFENSIVE OPERATIONS
  5-142. As a component of combat operations, the defense is a combination of highly complex tasks that place
  tremendous and continuous demands on Army sustainment organizations. Situational awareness, mission
  analysis, and detailed planning are keys to successful support operations. Commanders take advantage of the
  time available during a defense to build combat power. However, the time available is likely to be unknown