What term refers to an operation aimed at defeating an enemy attack while economizing forces?

A defensive operation is specifically designed to repel or defeat enemy attacks while minimizing the forces committed to the effort. This type of operation emphasizes the protection of friendly forces and resources, allowing them to conserve strength for counter-attacks or future engagements. By strategically positioning units in fortified locations and employing tactics such as deception and terrain advantage, defensive operations enable a force to effectively counter threats without the need for excessive resource allocation, thus achieving operational efficiency.

The other options refer to different types of military operations. An offensive operation focuses on taking the initiative and attacking the enemy, likely requiring more resources. Stability operations are aimed at establishing or maintaining order in an area, often following a conflict, which may not have the same focus on repelling attacks. Support operations involve assisting or providing resources to another unit or mission, rather than directly engaging in combat to defeat an enemy attack.