What is a key characteristic of a patrol?

A key characteristic of a patrol is that they return to the main body upon mission completion. This element is essential because it emphasizes the temporary and purposeful nature of a patrol's operations. Typically, patrols are dispatched to gather intelligence, conduct reconnaissance, or engage the enemy for a limited time before returning. Their successful return ensures that the main body retains the ability to react and plan future operations based on the information gathered during the patrol.

In contrast to this, the notion that patrols must operate openly in enemy territory does not account for stealth and the need for reconnaissance, where remaining undetected may be crucial. Furthermore, while many patrols may operate at night for tactical advantages, they are not limited to nocturnal operations. Lastly, the size of a patrol is often smaller and more maneuverable than larger units engaged in broader military operations; thus, the idea that patrols represent the largest units is inaccurate. Overall, the defining characteristic of returning to the main body after mission completion underscores the patrol's role within the overall military strategy.