輜重兵
Hall has been awarded the Navy Achievement Medal, the Marine Corps Reserve Medal, the Armed Forces Reserve Medal, and a Meritorious Unit Citation from the United States Marine Corps. He served as a Rifle Platoon Commander, Weapons Company Executive Officer, Training Officer, Battalion Area Security Officer, Staff Judge Advocate, Communications Security Officer and Logistics Officer. Secretary Hall also served as Legal Officer and was formerly Commandant for the Marine Corps League Detachment, which assists Marines transitioning from active duty to civilian life in locating employment, housing and educational opportunities for their families.