U.S. Army Col. John B. Hildebrand, commander of the 7th Signal Command, passes the guidon to Col. Maria A. Biank, incoming 93rd Signal Brigade commander, at a change of command ceremony at Fort Eustis, Va., Aug. 13, 2012. Traditionally, passing the guidon from one leader to another represents the passing of trust and well being of the unit. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)