US Air Force photo by Staff Sgt. Christian Sullivan
US Air Force photo by Senior Airman Leon Redfern
US Air Force photo by William R. Lewis
AP Photo/Libkos
REUTERS/David Swanson
Willie J. Allen Jr./Orlando Sentinel/Tribune News Service via Getty Images
Heritage Space/Heritage Images via Getty Images
US Air Force/Senior Airman Miranda Mahoney
Zhou Guoqiang/VCG via Getty Images
US Air Force photo by Tech. Sgt. Devin Boyer/DVIDS