12/28/2012 - A KC-135 Stratotanker refuels an F-15 Eagle during a training sortie near Kadena Air Base, Japan, Dec. 27, 2012. The 909th Air Refueling Squadron provides combat ready KC-135 tanker aircrews to support peacetime operations in all levels of conflict in the Pacific theater. (U.S. Air Force photo/Airman 1st Class Tyler Prince)

12/28/2012 - U.S. Air Force Staff Sgt. Dan Johnson, 909th Air Refueling Squadron boom operator, refuels an F-15 Eagle near Kadena Air Base, Japan, Dec. 27, 2012. The 909th ARS provides combat ready KC-135 tanker aircrews to support peacetime operations in all levels of conflict in the Pacific theater. (U.S. Air Force photo/Airman 1st Class Tyler Prince)

12/28/2012 - A KC-135 Stratotanker banks while preparing to refuel an F-15 Eagle during an evening training sortie near Kadena Air Base, Japan, Dec. 27, 2012. The 909th Air Refueling Squadron provides combat ready KC-135 tanker aircrews to support peacetime operations in all levels of conflict in the Pacific theater. (U.S. Air Force photo/Airman 1st Class Tyler Prince)

12/28/2012 - U.S. Air Force Capts. Andrew Lawerence and Harrison Gippol, 909th Air Refueling Squadron pilots, perform pre-flight checks in preparation for a training sortie on Kadena Air Base, Japan, Dec. 27, 2012. The 909th ARS provides combat ready KC-135 tanker aircrews to support peacetime operations in all levels of conflict in the Pacific theater. (U.S. Air Force photo/Airman 1st Class Tyler Prince)

12/28/2012 - U.S. Air Force Capt. Andrew Lawerence, 909th Air Refueling Squadron pilot, taxis a KC-135 Stratotanker in preparation for a training sortie on Kadena Air Base, Japan, Dec. 27, 2012. 909th ARS provides combat ready KC-135 tanker aircrews to support peacetime operations in all levels of conflict in the Pacific theater. (U.S. Air Force photo/Airman 1st Class Tyler Prince)