US Marine Corps photo by Sgt. Shaina Jupiter
US Marine Corps photo by Lance Cpl. Matthew Williams
Bettmann/Getty Images
bbevren/iStock/Getty Images Plus
US Air Force photo by Miriam Thurber
Courtesy photo compliments of SMSgt Christian Timmig, HQ Luftwaffe/DVIDS
US Air Force photo by Richard Gonzales
Nikita Teryoshin
US Navy photo by Mass Communication Specialist Seaman August Clawson