text: Offense
  turning movement differs from an envelopment in that the turning movement force seeks to make the enemy
  displace from current locations,whereas an enveloping force seeks to engage the enemy in its current location
  from an unexpected direction. A turning movement is particularly suited when forces possess a high degree
  of tactical mobility. Commanders frequently use a turning movement to transition from an attack to an
  exploitation or pursuit.
  6-103. The BCT commander organizes friendly forces into a turning force, a main body, and a reserve.
  Either the turning force or the main body can conduct the decisive operation based on the situation. Normally,
  a turning force conducts the majority of its operations outside of the main body’s supporting range and
  distance; therefore, the turning force must contain sufficient combat power and sustainment capabilities to
  operate independently of the main body for a specific period. The turning force seizes vital areas to the
  enemy’s rear before the main enemy force can withdraw or receive support or reinforcements. The maneuver
  of the turning force causes the enemy to leave its position.
  6-104. The commander organizes the main body,so the turning force is successful. The main body conducts
  operations, such as attacks to divert the enemy’s attention away from the area where the turning force
  maneuvers. The main body can be the decisive or shaping operation. The commander organizes the reserve
  to exploit success of the turning force or the main body. The reserve also provides the commander with the
  flexibility to counter unexpected enemy actions.
  6-105. The BCT commander establishes boundaries to designate the area of operations for each force
  participating in the turning movement. (See figure 6-5.) The commander designates control measures,such
  as PLs, contact points, objectives, limit of advance, and appropriate fire support coordination measures to
  synchronize the operation. (SeeFM 3-90-1 for additional information.)
  Figure 6-5. Turning movement