Dr. William Wiesel, grand marshal, leads 2nd Lt. Kevin Lin, the other graduates and faculty into the Air Force Institute of Technology commencement ceremony March 21, 2019, at the National Museum of the U.S. Air Force, Wright-Patterson Air Force Base, Ohio. More than 200 advanced degrees were awarded to officers, enlisted and civilians from the U.S., Australian and Brazilian armed forces. (U.S. Air Force photo by R.J. Oriez)