 On June 5, 1953, he led a fighter sweep to the mouth of the Yalu River in the northwest corner of "MiG Alley" at 45,000 feet.Observing approximately 40 MiG's in the process of taking off from an airfield in Manchuria, he led his flight of four aircraft in an attack on the vulnerable fighters, diving at Mach 1 through a protective top cover of MiGs 20,000 feet over the base.Almost immediately he shot down a MiG at low altitude, followed by a second soon after, as every member of the flight scored a kill, a rare if not unique occurrence.