Maj. Patrick Van Dam, 9th Air Refueling Squadron pilot from the Royal Netherlands air force, and Flight Lt. Greg Ferguson, 9th ARS pilot from the Royal Australian Force, stand on the flightline at Travis Air Force Base, Calif., June 27, 2012, near a KC-10 Extender. Van Dam and Ferguson are participating in a pilot exchange program. (U.S. Air Force photo/ Airman 1st Class Nicole Leidholm)