In joint operations, which Army warfighting function does Health Service Support planning primarily integrate under?

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

Answer: (D)

Health Service Support belongs under Sustainment because it provides the medical resources that keep the force operating: medical treatment, casualty care, evacuation, and the medical logistics needed to move, stock, and sustain health services across the battlefield. Sustainment is the umbrella for maintaining the force’s endurance, including medical support, supply chains, transportation, and personnel services, so HSS planning must be integrated with it to ensure medical assets, evacuation routes, and facilities are available and aligned with the operation’s tempo and priorities. Movement and Maneuver focuses on positioning and maneuvering forces, Intelligence on information and threat assessment, and Fires on delivering weapons effects; none of these cover the health service and medical logistics network as comprehensively as Sustainment does. For that reason, Health Service Support planning is most closely associated with Sustainment.