Define sustainment in Army operations and give an example of a sustainment function.

• A. Sustainment is the process of planning future operations without immediate resource support.
• B. Sustainment is the management of reconnaissance and surveillance assets.
• C. Sustainment involves the commander's personal welfare and morale only.
• D. Sustainment ensures a force has resources and support to operate, e.g., supply, maintenance, medical, and transportation services.

Answer: (D)

Sustainment is the ability to provide the resources and services a force needs to keep operating. It covers getting and maintaining the things that let soldiers fight and move—supply of rations, fuel, ammunition, and parts; maintenance and repair of equipment; medical care and evacuation; and transportation and other support services that keep units moving at the right tempo. That broader, ongoing provisioning is what sustainment is all about, which is why describing it as ensuring a force has resources and support to operate—including supply, maintenance, medical, and transportation services—is the best fit. Other options point to activities like planning future operations without immediate resource support, handling reconnaissance and surveillance assets, or focusing only on welfare and morale, which aren’t the full, ongoing provisioning function that sustainment represents.