Maj. Gen. Randall Ogden, Fourth Air Force commander, hands the 507th Air Refueling Wing flag to Col. Richard Heaslip, 507th ARW commander, June 3, 2018, at Tinker Air Force Base, Okla. The passing of a flag during a change of command ceremony serves as a visual symbol of command to Airmen within the unit. (U.S. Air Force photo/Tech. Sgt. Samantha Mathison)