Maj. Brian Dix, outgoing commanding officer of "The Commandant's Own," The United States Marine Drum & Bugle Corps, passes the unit's guidon to Capt. Christopher Hall, incoming commanding officer, during a change of command ceremony at Marine Barracks Washington, D.C., Dec. 11, 2014. Dix was appointed as the fourth director of "The Commandant's Own," in September 1998. Hall joined "The Commandant's Own" in March 1994 as a mellophone bugler, and is the only officer to serve as a Drum Major, Assistant Director, Operations Officer and Executive Officer for the unit. - Maj. Brian Dix, outgoing commanding officer of "The Commandant's Own," The United States Marine Drum & Bugle Corps, passes the unit's guidon to Capt. Christopher Hall, incoming commanding officer, during a change of command ceremony at Marine Barracks Washington, D.C., Dec. 11, 2014. Dix was appointed as the fourth director of "The Commandant's Own," in September 1998. Hall joined "The Commandant's Own" in March 1994 as a mellophone bugler, and is the only officer to serve as a Drum Major, Assistant Director, Operations Officer and Executive Officer for the unit.

Company B Marines fire ceremonial cannons during a ceremony for the Brigadier General Select Orientation Course Aug. 20. - Company B Marines fire ceremonial cannons during a ceremony for the Brigadier General Select Orientation Course Aug. 20.

Sgt. Coutrney R. Lawrence, Houston-native who served the role of drum major for the Marine Drum & Bugle Corps, leads in front of the D&B as it marches onto the field at the start of a Tuesday Sunset Parade at the Marine Corps War Memorial in Arlington, Va., July 24. Sgt. Maj. Micheal P. Barrett, sergeant major of the Marine Corps, served as the hosting official for this parade, which featured noncommissioned officers in positions traditionally held by officers and staff noncommissioned officers. The drum major, a position traditionally held by a gunnery sergeant or higher, is the senior-billeted Marine in the D&B and leads the musical unit in its ceremonies by both directing the Marines as they march and conducting them as they play. - Sgt. Coutrney R. Lawrence, Houston-native who served the role of drum major for the Marine Drum & Bugle Corps, leads in front of the D&B as it marches onto the field at the start of a Tuesday Sunset Parade at the Marine Corps War Memorial in Arlington, Va., July 24. Sgt. Maj. Micheal P. Barrett, sergeant major of the Marine Corps, served as the hosting official for this parade, which featured noncommissioned officers in positions traditionally held by officers and staff noncommissioned officers. The drum major, a position traditionally held by a gunnery sergeant or higher, is the senior-billeted Marine in the D&B and leads the musical unit in its ceremonies by both directing the Marines as they march and conducting them as they play.

Staff Sgt. Joshua Miles, Marine Drum & Bugle Corps marketing chief, crawls through mud and under wires during the Civilian Military Combine at Bryce Resort, Va., April 21, 2012. The Combine, a weight lifting competition followed by a mountainous 6-mile obstacle course, was the fourth event in the 2012 Commander's Cup series. Miles was one of four D&B Marines who competed as a team. - Staff Sgt. Joshua Miles, Marine Drum & Bugle Corps marketing chief, crawls through mud and under wires during the Civilian Military Combine at Bryce Resort, Va., April 21, 2012. The Combine, a weight lifting competition followed by a mountainous 6-mile obstacle course, was the fourth event in the 2012 Commander's Cup series. Miles was one of four D&B Marines who competed as a team.