What is the definition of "Defeat" within tactical missions?

The definition of "Defeat" within tactical missions is best captured by the idea of making a force incapable of achieving its objectives. This encompasses a broader strategic perspective, where the primary goal is not just to eliminate the enemy or their forces but to render them unable to fulfill their mission. This could involve various actions, such as disrupting their command and control, targeting their logistics, or undermining their morale, ensuring that they cannot effectively pursue their goals.

While the other options speak to important elements of military operations, they do not fully encapsulate the concept of defeat in the same way. For instance, eliminating all resistance focuses on a more immediate and total destruction of the adversary, which may not always be necessary to achieve a strategic victory. Similarly, restricting enemy movement and gaining physical control of an area are tactics that could lead to a defeat, but they represent specific actions rather than a comprehensive definition of defeat itself. Thus, option B effectively captures the essence of defeating an opposing force within tactical contexts by shifting the emphasis from direct confrontation to undermining the enemy's capabilities overall.