What is a key feature of reconnaissance patrols?

A key feature of reconnaissance patrols is their primary goal of gathering intelligence on enemy positions. This involves observing and reporting on various aspects such as enemy troop movements, fortifications, and overall readiness. The objective is to provide commanders with accurate and timely information, which is essential for making informed tactical decisions.

While reconnaissance patrols may sometimes be involved in providing security for supply lines or supporting other military operations, these activities are secondary to their main purpose of intelligence collection. Engaging the enemy directly is typically avoided in reconnaissance missions, as the focus is on stealth, observation, and gathering information rather than direct confrontation. Thus, option B encapsulates the critical mission of reconnaissance patrols in a military context.