A KC-135R Stratotanker from the 434th Air Refueling Wing at Grissom Air Reserve Base, Ind., flies over Ohio shortly after refueling a C-17 Globemaster III from the 445th Airlift Wing at Wright-Patterson Air Force Base, Ohio, June 18, 2014. The main mission of the KC-135 is to provide inflight refueling to long-range bomber, fighter and cargo aircraft. (U.S. Air Force photo/Tech. Sgt. Mark R. W. Orders-Woempner)
A KC-135 Stratotanker connects to an MC-130P Combat Shadow during air-to-air refueling. U.S. Air Force photo by Tech. Sgt. Kristine Dreyer.
A KC-135 Stratotanker from the Alaska Air National Guard's 168th Air Refueling Wing refuels an F-22 Raptor from the 90th Fighter Squadron at Elmendorf Air Force Base, Alaska. (U.S. Air Force photo/Airman 1st Class Jonathon Steffen)
Northrop Grumman B-2 Spirit ‘Stealth Bomber’ flying over the Pacific Ocean. May 12, 2009. Photo by Christopher Bush