A U.S. Air Force KC-135 Stratotanker from the 191st Air Refueling Squadron, Roland R. Wright Air National Guard Base, Utah, awaits civic leader guests to board before a refueling mission at Spangdahlem Air Base, Germany, Sept. 26, 2016. The tanker arrived Sept. 17th to train with Spangdahlem’s F-16 Fighting Falcons, adding valuable training for air-to-air refueling. (U.S. Air Force photo/Airman 1st Class Preston Cherry)

Ewald Heck, mayor of Landsheid, Germany, and Roger Feller, honorary commander of the 52nd Operations Group at Spangdahlem Air Base, Germany, stare out the boom window of a KC-135 Stratotanker from the 191st Air Refueling Squadron, Air National Guard Base, Utah, during a refueling mission over Ramstein Air Base, Sept. 26, 2016. The Stratotanker supplied 120,000 pounds of fuel to 13 of Spangdahlem’s F-16 Fighting Falcons during the course of two days. (U.S. Air Force photo/Airman 1st Class Preston Cherry)

A U.S. Air Force F-16 Fighting Falcon, assigned to the 52nd Fighter Wing, Spangdahlem Air Base, Germany, receives fuel from a KC-135 Stratotanker from the 191st Air Refueling Squadron, Roland R. Wright Air National Guard Base, Utah, over Ramstein Air Base, Sept. 27, 2016. The 191st ARS ANG unit conducted the aerial refueling during a routine training sortie. (U.S. Air Force photo/Senior Airman Dawn M. Weber)

Saber civic leaders wait in a U.S. Air Force KC-135 Stratotanker from the 191st Air Refueling Squadron, Roland R. Wright Air National Guard Base, Utah, for an opportunity to see F-16 Fighting Falcons assigned to the 52nd Fighter Wing, Spangdahlem Air Base, Germany, during a refueling mission over Ramstein Air Base, Sept. 26, 2016. The Stratotanker carried and transferred more than 120,000 pounds of fuel to 13 F-16s during the course of two days. (U.S. Air Force photo/Airman 1st Class Preston Cherry)

U.S. Air Force F-16 Fighting Falcons fly beside a KC-135 Stratotanker from the 191st Air Refueling Squadron, Roland R. Wright Air National Guard Base, Utah, after receiving fuel during a refueling mission over Ramstein Air Base, Germany, Sept. 26, 2016. The Stratotanker helps Spangdahlem’s F-16s train in air-to-air refueling for a longer duration and with more aircraft. (U.S. Air Force photo/Airman 1st Class Preston Cherry)

Saber civic leaders pose near a U.S. Air Force KC-135 Stratotanker from the 191st Air Refueling Squadron, Roland R. Wright Air National Guard Base, Utah, before a refueling mission at Spangdahlem Air Base, Germany, Sept. 26, 2016. During the mission, civil leaders received an opportunity to witness the transfer of 60,000 pounds of fuel to seven F-16 Fighting Falcons. (U.S. Air Force photo/Airman 1st Class Preston Cherry)

A U.S. Air Force KC-135 Stratotanker, assigned to the 191st Air Refueling Squadron from Roland R. Wright Air National Guard Base, Utah, refuels an F-16 Fighting Falcon assigned to the 52nd Fighter Wing, Spangdahlem Air Base, Germany, Sept. 27, 2016. The Utah ANG unit conducted the routine in-flight refueling to garner experience working with F-16s. (U.S. Air Force photo/Senior Airman Dawn M. Weber)

A U.S. Air Force F-16 Fighting Falcon assigned to the 52nd Fighter Wing flies past a KC-135 Stratotanker, assigned to the 191st Air Refueling Squadron, Roland R. Wright Air National Guard Base, Utah, over Ramstein Air Base, Sept. 27, 2016. The 191st ARS ANG unit conducted in-flight refueling exercise to demonstrate how tanker support can extend and prolong flight operations for U.S. and coalition aircraft. (U.S. Air Force photo/Senior Airman Dawn M. Weber)