Air Force Reserve Maj. Scott Smith, 339th Flight Test Squadron F-15 pilot, gives a start-engine signal to Daniel Roth, 561st Aircraft Maintenance Squadron aircraft mechanic, March 26, 2020, at Robins Air Force Base, Georgia. Active-duty and Reserve units at Robins have continued flight operations amid the current COVID-19 crisis. The 339th FLTS is part of the 413th Flight Test Group and performs functional check flights on aircraft after programmed depot maintenance is completed. The 561st AMXS is part of the Warner Robins Air Logistics Complex’s 402nd Aircraft Maintenance Group and provides programmed depot maintenance and unscheduled repair to F-15s. (U.S. Air Force photo by Jamal D. Sutter)