Lieutenant Col. James A. Ryans II (left) congratulates the new commanding officer of 3rd Battalion, 6th Marine Regiment, 2nd Marine Division, Lt. Col. Sean “Rush” Filson (right), after relinquishing the command to him aboard Marine Corps Base Camp Lejeune March 6, 2014. A change of command ceremony symbolizes the transfer of duties from one commander to another. Filson is taking command of the battalion after being the amphibious planning officer with Ellis Group, Headquarters Marine Corps, from Aug. 2012 through Feb. 2014.