text: Chapter 5
  5-304. The maneuver brigade commanders consider recommendations from their BSB commanders and
  tailor unit organic sustainment assets to the mission. Commanders decentralize the execution of sustainment,
  but that support must be continuously available to the main body. This includes using daily preplanned
  logistics packages with standardized allocation of supplies to replenish stocks. Special logistics packages can
  also be dispatched as needed.
  5-305. During a movement to contact, main supply routes frequently become extended as the operation
  proceeds. Aerial resupply may be necessary to support large-scale movement to contact or to maintain the
  momentum of the main body, but it is inadequate for a mechanized force on its own. Combat trains containing
  fuel, ammunition, medical, and maintenance assets move with their supported battalions or company teams.
  Fuel and ammunition stocks remain loaded on tactical vehicles in the combat trains to instantly move when
  necessary. Battalion field trains move with a higher support echelon, such as the BSB, in the main body of
  each maneuver brigade.
  SUSTAINMENT SUPPORT DURING MOVEMENT TO CONTACT
  5-306. Movement to contact has the potential to place increased demands on maneuver brigade and EAB
  sustainment. Once forces make contact, the commander makes the decision to attack, defend, bypass, delay
  or withdraw, which allows sustainers to refine their running estimates. The security force and main body
  should be weighted with priority for sustainment support.
  5-307. Maneuver brigade sustainment support must be tailored to fit the mission and task organized
  appropriately. The distribution company anticipates requirements and consumption rates for fuel and
  ammunition. SPO officers coordinate for unit distribution. Pre-positioned supplies along supply routes
  provide options and flexibility to decrease the distance for echeloning sustainment support. Aviation support
  and reconnaissance are essential to large-scale movements to contact. Sustainment planners should anticipate
  increased requirements for aviation fuel, ammunition, and maintenance during movement to contact.
  Sustainment planners must understand the tactical situation and place critical support assets in accordance
  with the corps and division plan for movement to contact to support the mission plan. Supporting forces
  should be placed at a distance that facilitates a flexible response to requests for support.
  ATTACK
  5-308. An attack is a type of offensive operation that defeats enemy forces, seizes terrain, or secures terrain
  (FM 3-90). Attacks incorporate coordinated movement supported by fires. A commander may describe an
  attack as hasty or deliberate, depending on the time available for assessing the situation, planning, and
  preparing.
  PREPARATION FOR AN ATTACK
  5-309. In an attack, the commander tries to position sustainment units well forward. From these forward
  locations, the units can sustain the attacking force and provide priority of support to the main effort. As the
  attacking force advances, sustainment units and capabilities displace forward as required to shorten supply
  lines, using displacement techniques designed to ensure uninterrupted support to maneuver units. The use of
  a forward logistics element can further ensure continuous support to maneuver units. See ATP 4-90 for
  additional information.
  5-310. Even in fluid situations, attacks are best organized and coordinated in assembly areas. Unless already
  in an assembly area, the attacking unit moves into one during the preparation phase. While in the assembly
  area, preparations are made to synchronize and coordinate the attack prior to moving into attack positions.
  Units should be replenished with fuel and ammunition as the unit moves in the assembly area or prior to
  movement into attack positions or crossing the line of departure. These preparations include protecting the
  force, performing reconnaissance, moving sustainment support forward, conducting rehearsals, refining the
  plan, and positioning the force and sustainment assets for subsequent actions to maintain momentum, prolong
  endurance, and ensure freedom of maneuver.
  5-311. The commander emphasizes simple and rapidly integrated fire support plans during rehearsals. This
  ensures overall coordination and synchronization with maneuver and sustainment assets. As part of the
  rehearsal process, the commander reviews the anticipated battle sequence with subordinate leaders to ensure