US Air Force photo by Senior Airman Haley Stevens
Mihail Siergiejevicz/SOPA Images/LightRocket via Getty Images
US Air Force photo by Senior Airman Taylor Crul
Leon Neal/Getty Images
US Air National Guard/Tech. Sgt. Charles Vaughn
CORBIS/Corbis via Getty Images
US Air Force photo by Staff Sgt. Trevor T. McBride