What is the main objective of a guard operation?

The main objective of a guard operation is to protect the main body while gaining time. This involves establishing a temporary force that can deny the enemy's access to key areas and provide early warning information. The guard unit serves as a buffer, slowing down enemy advances, which allows the main body to reposition, reinforce, or prepare for further operations.

In this context, "gaining time" is crucial because it allows commanders to react effectively to changing situations on the battlefield, ensuring that the main force can maintain its integrity and operational capability. This approach enables a more organized defense and affords the main body the necessary time to execute future plans or maneuvers.

The other objectives are not aligned with the primary purpose of a guard operation. While establishing a permanent defense line, conducting offensive assaults, or focusing exclusively on reconnaissance are important strategic activities, they do not specifically encapsulate the unique role and intention of a guard operation, which is fundamentally about protecting and buying time for the main force.