Which Army warfighting function enables Health Service Support access, mobility, information, and protection?

• A. Movement and Maneuver
• B. Intelligence
• C. Fires
• D. Sustainment

Answer: (D)

Sustainment keeps the force supported, equipped, and able to operate over time. Health Service Support—medical care, evacuation, and medical supply—rests on sustainment to be available when and where troops need it. Mobility comes from the logistics and transportation networks that move people, equipment, and medical assets to the right place at the right time. Information flows are sustained through visibility of supplies, medical status, and evacuation data so leaders can plan and adapt. Protection of personnel, supplies, and sustainment routes is also a core part of keeping operations going without interruptions.

Because Health Service Support access, mobility, information, and protection all hinge on the ability to provide and secure logistical and support services, this warfighting function is the one that enables them. The other functions focus on different aspects—movement and maneuver handles force movement, intelligence handles the information and analysis, fires deliver tactical effects, and information is a separate function for information operations—while sustainment ties them together to keep the mission running.