Col. Steven Lang, 45th Launch Group commander, presents Lt. Col. Waylon Mitchell, 5th Space Launch Squadron commander, with a guidon during a change of command ceremony July 7, 2016, at Cape Canaveral Air Force Station, 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/Benjamin Thacker/Released)