General James F. Amos, left, the 35th Commandant of the Marine Corps, and Sgt. Maj. Micheal Barrett, the 17th Sergeant Major of the Marine Corps, speak to Marines and sailors with 1st Battalion, 7th Marine Regiment; 1st Battalion, 2nd Marine Regiment; and 2nd Combat Engineer Battalion aboard Camp Leatherneck, Afghanistan, Sept. 6, 2014. Gen. Amos and Sgt. Maj. Barrett visited Marines and sailors serving with Marine Expeditionary Brigade – Afghanistan in Helmand province for the final time, thanking them for their service and sacrifice. - General James F. Amos, left, the 35th Commandant of the Marine Corps, and Sgt. Maj. Micheal Barrett, the 17th Sergeant Major of the Marine Corps, speak to Marines and sailors with 1st Battalion, 7th Marine Regiment; 1st Battalion, 2nd Marine Regiment; and 2nd Combat Engineer Battalion aboard Camp Leatherneck, Afghanistan, Sept. 6, 2014. Gen. Amos and Sgt. Maj. Barrett visited Marines and sailors serving with Marine Expeditionary Brigade – Afghanistan in Helmand province for the final time, thanking them for their service and sacrifice.