According to Marine Corps communications doctrine, what is the bottom line?

The statement "If you can't communicate, you can't command" encapsulates the fundamental principle of the Marine Corps communications doctrine. Effective communication is crucial for leadership and command, as it enables the conveyance of orders, situational awareness, and coordination between units. Without the ability to communicate clearly and reliably, leaders cannot effectively direct their forces or manage operations, which can lead to confusion and failure in achieving mission objectives. This principle underscores the importance of communication not just as a technical capability, but as a critical aspect of command and control within military operations. In contrast, the other statements, while important, focus on specific support elements like resource management, personnel training, or alliances, which, although vital for operational success, do not directly address the core importance of communication in command.