Pictures from History/Universal Images Group via Getty Images
US Navy photo/Petty Officer 1st Class Steven Myers
US Marine Corps photo by Sgt. Shaina Jupiter
US Marine Corps photo by Lance Cpl. Matthew Williams
US Marine Corps photo by Cpl. Malia Sparks
US Army via AP
Courtesy photo compliments of SMSgt Christian Timmig, HQ Luftwaffe/DVIDS
US Air Force photo by Richard Gonzales
US Navy photo by Hospital Corpsman 1st Class Kenji Shiroma/Released
Gerald Herbert/AP