Which statement describes the second method for initiating movement in a Moving Flank Guard?

• A. The Security Force crosses the LD separately from the MB and deploys to perform the mission.
• B. The MB crosses the LD first and the Security Force follows.
• C. The Security Force crosses the LD with the MB and then deploys out into the zone.
• D. The team waits for a lull in fire before moving.

Answer: (C)

When a Moving Flank Guard moves, the goal is to keep the security element tightly integrated with the main body so threats are detected early and tempo is maintained. The second method has the Security Force crossing the line of departure together with the Main Body and then immediately deploying into the zone to provide security coverage as the movement continues. Moving in cohesion with the MB means there’s no lag between the advancing force and its flank security; as soon as the crossing happens, the security element is already in position to monitor, deny, and respond to threats along the route. This immediate deployment into the zone allows for quicker blocking of likely avenues of approach and better cover for the MB, preserving mutual support and overall cohesion.

Crossing separately can introduce gaps or require extra coordination to reestablish security once the movement is underway, which can slow the advance and create vulnerability.