A a crew chief assigned to the 175th Wing marshals an A-10C Thunderbolt II aircraft piloted by Air Force Col. Paul Zurkowski, a pilot assigned to the 104th Fighter Squadron, March 3rd, 2018, after his fini flight at Warfield Air National Guard Base, Middle River, Md. The fini flight, or final flight, is a tradition among pilots and air crew to celebrate one’s last flight with their unit or on a certain aircraft. (U.S. Air National Guard photo by Airman 1st Class Sarah M. McClanahan)