Maj. Gen. Kenneth Lewis Jr., left, Air Force Reserve Command deputy commander, speaks with Lt. Col. Matthew Griffin, 339th Flight Test Squadron director of operations, after their flight in an F-15 May 16, 2019, at Robins Air Force Base, Georgia. The flight was Lewis’ final one in a military aircraft after more than 34 years of service. (U.S. Air Force photo by Jamal D. Sutter)