Which of the following is a task related to the 'Defense' component of decisive action?

The task related to the 'Defense' component of decisive action is area defense. Area defense focuses on the protection of a designated area, where forces are organized to engage enemy forces attempting to penetrate or disrupt that area. This involves establishing defensive positions, planning for potential enemy attacks, and ensuring that all units within the area work in concert to counter threats.

In contrast, the other options pertain to different aspects of military operations. Movement to contact is primarily an offensive maneuver aimed at locating and engaging the enemy. Offensive operations involve direct action against enemy forces, with the goal of defeating them or advancing the mission objectives. Combat reconnaissance is also an offensive task aimed at gathering information about enemy positions or activities, rather than defending a specific area. Thus, area defense distinctly aligns with the defensive strategy within decisive action.