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Col. John F. Robinson, 911th Airlift Wing commander, passes the 911th Maintenance Group guidon to Lt. Col. Richard Cox, 911th MXG commander, at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, Aug. 8, 2021. The passing of the guidon symbolizes the transfer of command and that Cox assumes responsibility for the 911th Maintenance Group. (U.S. Air Force courtesy photo)