What is the primary method of communication used in GCE operations for command and control?

Radio communication is the primary method of communication used in Ground Combat Element (GCE) operations for command and control due to its speed and effectiveness in a dynamic battlefield environment. Radios allow for real-time, two-way communication between units regardless of distance, which is crucial for coordinating movements, relaying intelligence, and executing commands promptly.

While written reports can provide detailed information, they lack the immediacy needed in combat scenarios. Face-to-face communication, although effective, can be limited by the chaotic nature of the battlefield; it may not always be feasible or safe to gather personnel for discussions. Signal flags, an older method of communication, can also be limited by visibility and weather conditions, making them less reliable than radio. The versatility and reliability of radio communication make it essential for effective command and control in GCE operations.