Under Secretary Donovan returns to Luke for 61 FS graduation
Lt. Col. Rhett Hierlmeier, 61st Fighter Squadron commander, briefs Under Secretary of the Air Force Matthew Donovan on the capabilities of the F-35 Lightning II at Luke Air force Base, Ariz., June 29, 2018. Donovan learned about the aircraft, mission and Airmen at Luke. (U.S. Air Force Photo by Airman 1st Class Zoie Rider)