PATRICK AIR FORCE BASE, Fla. -- Brig. Gen. Wayne Monteith, 45th Space Wing commander, presents Col. Kevin Williams, 45th Mission Support Group commander, with a guidon during a change of command ceremony June 16, 2017, at Patrick Air Force Base, Fla. Changes of command are a military tradition representing the transfer of responsibilities from the presiding official to the upcoming official. (U.S. Air Force photo by Phil Sunkel)