What is an operation in which a force moves forward or rearward through another force's combat positions?

The concept of an operation where a force moves through another force’s combat positions is specifically known as a Passage of Lines. This operation is characterized by one unit passing through the positions of another unit. The force that is moving can be heading toward the enemy or repositioning for different operational needs, while the unit being passed through is typically providing security or support.

In military operations, a Passage of Lines is crucial for coordinating movements without compromising the tactical integrity of either unit involved. This maneuver enables units to support each other effectively while managing their areas of combat responsibility. It requires precise communication and planning to ensure that both forces understand the timing, direction, and operational intent involved in the passage.

Understanding this maneuver is vital for successful coordination in dynamic battlefield environments, where maintaining momentum and unit integrity can significantly impact mission success.