Lt. Col. George F. Lenahan, the outgoing 910th Maintenance Squadron Commander and new deputy commander of the 910th Maintenance Group, relinquishes the 910th MXS guidon to Lt. Col. Joseph C. Winchester, the commander of the 910th Maintenance Group, during a change of command ceremony, Oct. 2, 2021, at Youngstown Air Reserve Station, Ohio. The transfer of the guidon symbolizes the official change of command and is a ceremony that dates back to the eighteenth century when a change in leadership would occur in front of the unit so that all could witness their new leader assuming the dutiful position. (U.S. Air Force photo/Tech. Sgt. Jeffrey Grossi)