What is a critical task during the "Passage of Lines" operation?

During the "Passage of Lines" operation, ensuring clear and established communication is essential because it allows for the effective coordination of forces transitioning from one unit's area of operations to another. This operation involves units crossing in front of or behind each other, which can create potential confusion and risk. Clear communication helps maintain situational awareness, provides updates on the status of units, and ensures that all involved parties understand their roles and responsibilities during the maneuver.

Effective communication is vital in preventing accidents and misunderstandings that might lead to friendly fire incidents or operational failures. It serves as the backbone for synchronization during a complex movement where various units interact closely. Additionally, having established communication channels allows for the prompt sharing of intelligence and any changes to the operational plan, which is critical in a dynamic battlefield environment. Thus, the emphasis on communication during this phase is paramount for the successful execution of the operation.