Guidon
U.S. Air Force Lt. Col. Jeffrey Hogan (right), 81st Fighter Squadron commander, receives the guidon from Col. John Nichols, 14th Flying Training Wing commander, during an assumption of command ceremony Jan. 15, 2015, at Moody Air Force Base, Ga. An assumption of command is a military tradition that represents a formal assumption of a unit’s authority and responsibility by a commander. (U.S. Air Force photo by Senior Airman Sandra Marrero/Released)