Colonel Robert Lyman (left), Joint Base Charleston commander, passes the 628th Mission Support Group guidon to incoming commander, Col. Richard Mathews (right), during the 628th MSG change of command, July 17, 2015 at Joint Base Charleston, SC. Mathews assumed command of the 628th MSG from Col. Michael Mongold during the ceremony. Mathews comes to JB Charleston from Air Mobility Command at Scott Air Force Base, Ill,, where he was chief, Engineering Division Directorate of Installations and Mission Support. Mongold is headed to the Air Force Personnel Center at Joint Base San Antonio – Randlolph, Texas, where he will serve as the chief of the Air Expeditionary Forces Operations Squadron. (U.S. Air Force photo/ Airman 1st Class Thomas T. Charlton)