text: Fire Support in Depth During Large-Scale Combat Operations
  SUSTAINMENT FOR FIRE SUPPORT IN OFFENSIVE OPERATIONS
  6-104. As units move forward and offensive combat operations are initiated, lines of communication
  extend, and detailed planning is required to accommodate increased rates of consumption. FS operations
  must be sustainable with fuel, ammunition, maintenance, and medical support by aerial and ground means.
  FS and sustainment planners must arrange for fuel to be pushed forward to allow artillery units to refuel with
  minimum disruption to operations. Planning should consider access to prepositioned forward corps and
  division assets to include refuel-on-the-move options and equipment recovery support. Refueling on the
  move is the preferred option for operations in the offense. During movement to contact, units should
  anticipate a disruption of resupply. They should carry sufficient supplies to support them through the
  movement to contact and ensuing battle.
  6-105. Prior to crossing the LOD in support of offensive operations, firing units should use prepositioned
  ammunition stocks to fire preparations or other programs requiring extensive expenditure of ammunition.
  This will conserve up-loaded ammunition and permit advance into enemy territory with a maximum amount
  of accompanying ammunition stocks.
  6-106. Sustainment operations during deliberate attacks should focus on weighting the main effort and the
  resupply of critical items such as fuel and ammunition and the provision of medical and maintenance support.
  Follow-on operations must be considered to ensure a swift transition into exploitation or pursuit operations.
  TRANSITION TO THE DEFENSE
  6-107. Commanders retain greater flexibility for defensive operations if they begin preparations before the
  force culminates. This may allow commanders to dictate where they conduct defensive operations.
  Commanders can plan future activities to aid defensive operations, minimize vulnerability to attack, and
  facilitate renewal of offensive operations as a force transitions to branches or sequels of an ongoing operation.
  For example, some of a commander's subordinate units may move into battle positions before the entire unit
  terminates the offense. Commanders can echelon sustainment assets forward to establish a new echelon
  support area.
  6-108. If a force achieves its objectives, and the situation makes focusing on defensive operations
  inappropriate, then commanders transition to a security and stability focus. The commander's intent and
  concept of operations drives the design and planning for security and stability. Generally, commanders focus
  on meeting the minimum-essential stability tasks by providing security and ensuring the provision of essential
  food, water, shelter, sanitation, and medical services to the local inhabitants in their AO. This occurs in
  coordination with indigenous population and institutions and unified action partners before addressing the
  other stability concerns.
  SECTION V – ENABLING, STABILITY AND RECONSTITUTION OPERATIONS
  6-109. Commanders direct tactical enabling operations to support the performance of all offensive,
  defensive, and stability operations. Enabling operations are usually conducted by commanders as part of
  shaping operations and supporting efforts. A supporting effort is a designated subordinate unit with a mission
  that supports the success of the main effort (ADP 3-0). Enabling operations apply to all elements of decisive
  action. See For more information on enabling, stability, and reconstitution operations see ADP 3-90 and ATP
  3-90.4.
  ENABLING OPERATIONS
  6-110. The tactical enabling operations are reconnaissance, security, troop movement, relief in place,
  passage of lines, mobility operations, and countermobility operations. They will be discussed in the following
  paragraphs.
  RECONNAISSANCE
  6-111. Reconnaissance is mission undertaken to obtain information about the activities and resources of an
  enemy or adversary, or to secure data concerning the meteorological, hydrographic, geographic, or other