Retired Air Force pilot Lt. Col. Bob Pardo speaks to a group of graduating 310th Fighter Squadron F-16 Basic Course pilots and their friends and families at Luke Air Force Base, Ariz., Dec. 13, 2017. Pardo famously prevented the capture of another aircrew by using his aircraft to push their damaged jet into friendly airspace during the Vietnam War in what came to be known as “Pardo's Push.” (U.S. Air Force photo/Senior Airman Ridge Shan)