text: Security Operations
  Figure 5-11. Movement to contact technique during moving flank security mission
  Security Force Crosses LD with the Main Body and Conducts Zone Reconnaissance out to the
  Limit of the Security Area
  5-92. The final technique is when the security force crosses the LD with the main body and conducts zone
  reconnaissance out to the far limit of the security area, as seen in figure 5-12, page 5-28. This technique is
  appropriate when the LD is also the line of contact, the main body makes its own penetration of the enemy
  defenses along the line of contact, the main body is moving slowly, and leaders do not clearly understand the
  enemy situation. The security force may follow the lead element of the main body through the gap and deploy
  when the situation permits. This technique provides increased security for both the security force and the
  main body; it is also the most time-consuming technique.