What is a key characteristic of a Long Security Halt?

A Long Security Halt is primarily characterized by the patrol laying in a prone position around a perimeter. This tactical formation is essential during a long halt because it maximizes the patrol's ability to observe and secure the area while minimizing their exposure to potential threats. By maintaining a low profile, the personnel can effectively monitor for enemy movement and potential threats without compromising their position.

The choice of laying prone allows for a more effective use of cover and concealment, which is vital in combat situations. It also enables the patrol to remain ready for any immediate action that might be required, as they are in a position to respond quickly to any threats.

This formation differs significantly from other methods of maintaining a security halt, such as standing at ease or maintaining rapid movement, which would not provide the same level of security or awareness during an extended stop. A circular formation is also less practical for effective surveillance in a long-term halt scenario.