Brig. Gen. Wayne Monteith, 45th Space Wing commander, presents Col. Gigi Simko, 45th Medical Group commander, with the 45th MDG guidon during a change of command ceremony August 2, 2017, at Patrick Air Force Base, Fla. Changes of command are a military tradition representing the transfer of responsibilities from the presiding officials to the upcoming official. (U.S. Air Force photo by Phil Sunkel)