text: Security Operations
  Figure 5-8. Visual contact during moving flank guard operation
  Bravo Troop conducts a fire mission with A/3-29 Field Artillery. Upon completion of the fire mission, Bravo
  Troop coordinates with Charlie Company to move two tank platoons into battle position 1 and battle position 2.
  Bravo Troop conducts a linkup and a battle handover with Charlie Company using a rearward passage of
  lines. Once the last vehicle moves through the passage point, Bravo Troop moves their forces north and
  conducts an alternating bound to take over the northern most area of operations. This allows them to destroy
  the enemy force while allowing the moving flank guard’s tempo to continue uninterrupted. If a larger force
  were observed, then the squadron commander would have to relay to the brigade commander to address the
  composition and disposition of the enemy force moving towards the flank of the squadron, brigade, and division.
  Once the brigade secures OBJECTIVE KING, the squadron transitions to a screen operation and begins
  consolidation and reorganization tasks. The division adjusts the task organization in preparation for follow-
  on operations and the attachments no longer under the squadron’s control are escorted to their next location.
  The squadron uses the time to conduct sustainment operations.
  REAR GUARD
  5-83. A rear guard protects the exposed rear of the main body. Rear guards are appropriate when conducting
  offensive tasks, when the protected force breaks contact with flanking forces, or during a retrograde. The rear
  guard deploys and defends for moving and stationary main bodies. The tasks described for a stationary flank
  guard apply. The rear guard for a moving force displaces to successive battle positions along PLs in-depth as
  the main body moves. The nature of enemy contact determines the scheme of maneuver for displacement.
  (Refer to FM 3-90-2 for more information.) The commander establishes the rear guard during retrograde
  operations in two ways: