Health Service Support (HSS) mission is included in?

• A. Protection warfighting function
• B. Movement and Maneuver
• C. Fires warfighting function
• D. Sustainment warfighting function

Answer: (D)

Health Service Support is about preserving the fighting potential by keeping the force medically ready, treating casualties, and ensuring medical evacuation and logistics. In the Army’s warfighting functions, sustainment covers all actions that keep the force operating, including logistics, maintenance, and health services. HSS directly supports the user’s ability to continue missions by maintaining health, treating injuries, and getting care where needed, which is why it belongs under Sustainment. It isn’t primarily about moving units (Movement and Maneuver), engaging targets (Fires), or protecting assets (Protection), so those functions don’t fit as well.