Air Force Chief of Staff Gen. David L. Goldfein delivers a State of the Air Force speech during the Air Force Association’s Air, Space and Cyber Conference in National Harbor, Md., Sept. 17, 2019. The ASC Conference is a professional development seminar that offers the opportunity for Department of Defense personnel to participate in forums, speeches and workshops. (U.S. Air Force photo by Wayne Clark) #YearInPhotos #AirForce #USAF #Airman #Airmen #CSAF #ASC #AirSpaceCyber (Day 59/100)