Marine Commandant Gen. Joseph Dunford Jr., the 36th commandant of the Marine Corps (right) transfers the battle colors to Gen. Gen. Robert Neller as Sergeant Major of the Marine Corps Ronald Green at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Gen. Joseph Dunford at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. He transferred command to Gen. Robert Neller and will become the Chairman of the Joints Chief of Staff. (Daniel Woolfolk/ Marine Corps Times)Marine Commandant Gen. Joseph Dunford Jr., the 36th commandant of the Marine Corps (right) transfers the battle colors to Gen. Gen. Robert Neller at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Gen. Mark A. Welsh III , Chief of Staff of the U.S. Air Force, (center) attended the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Ellyn Dunford, wife of Gen. Joseph Dunford, received a Distinguished Public Service Award from Navy Secretary Ray Mabus at Marine Corps Barracks Washington, Sept. 24, 2015 for her efforts in helping Marines. (Daniel Woolfolk/ Marine Corps Times)"The Commandant's Own" United States Marine Drum & Bugle Corps played Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Marines take part in the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)"The Commandant's Own" United States Marine Drum & Bugle Corps played Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Marines take part in the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Defense Secretary Ashton Carter speaks at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Navy Secretary Ray Mabus shakes hands with Gen. Joseph Dunford who transferred over his role as commandant to Gen. Robert Neller at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Gen. Robert Neller at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Former commandant of the Marine Corps retired general James Amos greets the outgoing commandant, Gen. Joseph Dunford at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. Dun ford will become the chairman of the Joint Chiefs of Staff. (Daniel Woolfolk/ Marine Corps Times)Members of the Silent Drill Platoon take part in the parade in review at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Gen. Joseph Dunford congratulates Gen. Robert Neller at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. Dunford transferred command to Gen. Robert Neller and will become the Chairman of the Joints Chief of Staff. (Daniel Woolfolk/ Marine Corps Times)Members of the Silent Drill Platoon take part in the parade in review at the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)Members of "The Commandant's Own" —the Marine Corps Drum & Bugle Corps take part in the Commandant's change of command at Marine Corps Barracks Washington, Sept. 24, 2015. (Daniel Woolfolk/ Marine Corps Times)