How does a covering force differ from guard and screen missions?

A covering force is designed to provide both security and mobility to the main body of a force by conducting operations that can include delaying enemy forces and securing safe avenues of approach. Its tactical self-containment means it can operate independently, coordinating its actions with the main force while also being capable of executing its mission without direct support. This independence is crucial, as it allows the covering force to react flexibly to threats and maintain control over its assigned area.

In contrast, guard missions typically involve a more passive role focused on early warning and securing lines of communication. A screen mission emphasizes surveillance and reconnaissance, primarily to provide information to the main force and to deter enemy reconnaissance. While these missions may have overlapping responsibilities, the covering force's autonomy and offensive capabilities set it apart, making it a more proactive entity on the battlefield.