Todd I. Stewart, Air Force Institute of Technology director and chancellor, gives the opening remarks of the school’s commencement ceremony March 21, 2019, at the National Museum of the U.S. Air Force, Wright-Patterson Air Force Base, Ohio. Gen. David Goldfein, U.S. Air Force chief of staff, gave the graduation address to the more than 200 graduates. (U.S. Air Force photo by R.J. Oriez)