Which Marines provide essential direct support such as intelligence, communications, and engineering, along with combat service support like logistics, medical, and transportation?

• A. Infantry (Combat Arms)
• B. Combat Support
• C. Reconnaissance Marines
• D. Non-Combat Arms

Answer: (D)

Non-Combat Arms covers all Marines whose jobs are to enable and sustain combat units, not the infantry itself. The roles mentioned—direct support like intelligence, communications, and engineering—are essential capabilities that back up frontline units. At the same time, sustaining those operations requires combat service support such as logistics, medical, and transportation. Together, these support functions fall under the broader Non-Combat Arms category, which includes both Combat Support (the direct-support capabilities) and Combat Service Support (the sustainment functions). The infantry are the primary combat arms, so they aren’t the group described here. Reconnaissance Marines are a specialized infantry path, so they’re also in the Combat Arms realm.