What are the four missions of a sustainment brigade?

The four missions of a sustainment brigade are accurately reflected in the choice that includes Theater Opening, Sustainment, Theater Distribution, and Theater Closing.

Theater Opening refers to the initial phase in which logistical capabilities and support structures are established to facilitate the entry of forces into an operational area. Sustainment focuses on providing the necessary supplies and support to maintain military operations, ensuring that troops have access to food, equipment, and other essential resources. Theater Distribution involves the movement and delivery of supplies within the operational area, ensuring that units are adequately supplied as they execute their missions. Lastly, Theater Closing encompasses the processes associated with the withdrawal of forces and the deconstruction of logistical operations after the completion of the mission, ensuring an organized and efficient exit strategy.

These key missions form a comprehensive structure vital for effective sustainment operations during large-scale combat, reinforcing the importance of each function in maintaining battlefield readiness and operational success.