What command and control structure supports the President and the Secretary of Defense?

The National Military Command System (NMCS) is the correct choice for supporting the President and the Secretary of Defense. This system is crucial for the effective command and control of military operations and provides a comprehensive framework for strategic decision-making. The NMCS was designed to ensure that there is a reliable means of communication and operational planning that enables national leaders to manage military forces effectively in times of peace and conflict. It incorporates various elements to facilitate real-time information sharing, operational awareness, and decision support.

In contrast, while the Global Command and Control System (GCCS) and the National Military Command Center (NMCC) are important components of military command structures, they serve specific functions that support broader communication and operational environments. The GCCS is a system designed to integrate data from various command levels, and the NMCC serves as a physical location for command and control but does not encompass the broader framework of command and control management outlined in the NMCS. The Strategic Automated Command and Control System (SACCS) is more focused on nuclear command and control operations, making it less relevant for the general command support needs of the President and the Secretary of Defense.

The NMCS is thus the overarching framework that ensures cohesive action among military and national leadership, making