What do raid patrols typically aim to achieve?

Raid patrols are primarily designed to achieve specific, time-sensitive objectives that often involve direct action against the enemy. This includes missions such as freeing captured personnel or destroying crucial enemy installations. The goal is to execute a swift and well-planned operation that inflicts damage on the enemy and enhances the overall mission objectives without leading to prolonged engagement.

In contrast, the other options indicate distinct tactical objectives that do not align with the purpose of raid patrols. Long-term reconnaissance aims to gather intelligence over an extended period, which is not the focus of a raid. Engaging the enemy in sustained conflict implies a prolonged battle rather than a quick, decisive operation, which is not typical for raids. Establishing a forward supply base falls outside the scope of raid missions as they focus on attacking rather than providing logistical support. Therefore, the correct answer highlights the essential and specific goals that define the operation of raid patrols within military tactics.