Master Sergeant Edward M. Willis distinguished himself by extraordinary achievement while participating in aerial flight as an HH-53C Pararescue Technician in Southeast Asia on 18 February 1970.  On that date, Sergeant Willis and his fellow crewmembers flew their rescue helicopter deep into hostile territory to rescue a downed American Airman.  Once driven off by ground fire, they returned to successfully rescue the airman after another helicopter had been critically damaged in a previous attempt.  The professional competence, aerial skill and devotion to duty displayed by Sergeant Willis reflect great credit upon himself and the United States Air Force.