Mrs. Susan Mozena is fitted for an oxygen mask in preparation for a flight on a 93rd Bomb Squadron B-52H Stratofortress, Sept. 21, 2018 at Barksdale Air Force Base, Louisiana. Mozena is the daughter Lt. Charles d’Olive, a World War I fighter ace who was assigned to the 93rd Aero Squadron in France. (U.S. Air Force photo by Master Sgt. Greg Steele)