What is a primary goal of the defensive tasks in engagement with the enemy?

The primary goal of defensive tasks in engagement with the enemy encompasses retaining essential territory, gaining time, and supporting other operational objectives. Each of these components is crucial when formulating a defense strategy.

Retaining essential territory is vital because it often includes key positions that can affect the overall operational environment. Control of terrain impacts both defensive and offensive operations, providing advantages such as observation, security, and logistical support.

Gaining time is another critical aspect of defensive operations. This allows friendly forces to regroup, reinforce, or prepare for a counteroffensive, which can be decisive in the overall campaign. It enables units to maintain their strength and resilience against the enemy's advances, thereby shaping the course of engagements.

Supporting other operational objectives creates synergy within the larger operational framework. Defensive tasks might be part of a broader strategy that aligns with offensive maneuvers or logistical considerations, and successfully executing these tasks contributes to the accomplishment of overarching mission goals.

Thus, these three elements, when combined, reflect the comprehensive nature of defensive operations, illustrating that achieving one does not occur in isolation but rather in concert with the others. This holistic approach is why "all of the above" is recognized as the correct choice in understanding the primary goals of defensive tasks.