Which command consists of strategic, tactical, space, or defense forces, including flying forces that support such operations?

The correct response identifies Major Commands, Field Operating Agencies, and Direct Reporting Units as the collective organizational structure that includes strategic, tactical, space, or defense forces, along with the associated flying forces necessary to carry out diverse operations.

Understanding this choice involves recognizing that Major Commands are the primary organizational elements within the U.S. military, tasked with specific operational objectives that span various domains, including air, space, and cyber operations. Each Major Command has a unique focus, tasked with ensuring that both the strategic and tactical needs of the military are met through comprehensive oversight.

Field Operating Agencies serve specific functions crucial to the command's operations, enhancing the effectiveness and reach of tactical initiatives. Direct Reporting Units are organizations that report directly to a Major Command and ensure more specialized operational capabilities are available where needed. Together, these entities facilitate a structured approach to command and control, making them responsible for integrating and executing multi-domain operations.

In contrast, the other options represent either broader organizational entities without the operational details required by the question (like the entire U.S. Armed Forces), specific mobility operations (as with Air Mobility Command), or a narrowed focus limited to air combat operations (like Combat Air Forces), which do not encompass the full spectrum of forces and operations as described.