509th OSS Change of Command
U.S. Air Force Col. Keith Butler, 509th Operations Group commander, U.S. Air Force Lt. Col. Joshua Wiitala, outgoing 509th Operations Support Squadron commander, and U.S. Air Force Lt. Col. Christopher Diller, 509th Operations Support Squadron commander prepare for the ceremonial hand off of the unit guidon during a change of command ceremony at Whiteman Air Force Base, Missouri, April 23, 2021. The change of command ceremony is a military tradition that formally signifies the transfer of responsibility for a unit from one commanding officer to another, symbolized through the passing of a guidon. (U.S. Air Force photo by Airman 1st Class Victoria Hommel)