Why is coordination critical between the GCE and ACE?

Coordination between the Ground Combat Element (GCE) and the Aviation Combat Element (ACE) is vital primarily for the effective integration of air and ground support. The GCE is responsible for maneuvering and engaging in ground operations, while the ACE provides the necessary air support to enhance the combat effectiveness of the GCE. This synergy ensures that air assets are effectively utilized to support ground missions, whether through close air support, reconnaissance, or logistical support, ultimately increasing the lethality and survivability of ground forces. Effective coordination allows both elements to operate seamlessly, ensuring that airpower is applied at the right time and place to support ground objectives, thereby maximizing the overall combat effectiveness of the Marine Corps.

While the other choices touch on important aspects of military operations, they do not capture the primary reason for coordination between the GCE and ACE as comprehensively as the correct answer does. Casualty reporting and training communication are important, but they are secondary to the direct impact of integrated air and ground support on mission success. Creating joint operational capabilities for all units also plays a role in the broader operational context, but it is the specific integration of air and ground operations that is most critical for immediate combat effectiveness.