U.S. Marines with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa fly an aerial refueling mission with pilots from the Spanish Air Force, Aug. 13, near Morón Air Base, Spain. While this particular training was a first for the two countries, the U.S. and Spain work together routinely, fostering one of the closest defense partnerships around the world. (U.S. Marine Corps photo by Staff Sgt. Vitaliy Rusavskiy/Released)

A Eurofighter Typhoon with the Spanish Air Force receives fuel from a U.S. Marine KC-130J Hercules with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, August 13, in Spain. A total of five Spanish pilots and their aircraft had the opportunity to practice their air-to-air refueling skills with the Marines from SPMAGTF-CR-AF. While this particular training was a first for the two countries, the U.S. and Spain work together routinely, fostering one of the closest defense partnerships around the world.(U.S. Marine Corps photo by Staff Sgt. Vitaliy Rusavskiy/Released)

Three Eurofighter Typhoons with the Spanish Air Force escort a U.S. Marine Corps KC-130J Hercules during an aerial refueling mission, Aug. 13, in Spain. Bilateral exercises such as this one are how Spain and the U.S. foster one of the closest defense partnerships around the world. (U.S. Marine Corps photo by Staff Sgt. Vitaliy Rusavskiy/Released)

A Eurofighter Typhoon with the Spanish Air Force based out of Morón Air Base, Spain, refuels from a KC-130J Hercules, a first for the Marines from Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, Aug. 13, in Spain. The U.S. and Spain have been fostering one of the closest defense partnerships around the world for more than 60 years. (U.S. Marine Corps photo by Staff Sgt. Vitaliy Rusavskiy/Released)

U.S. Marines with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa coordinate an aerial refueling mission with pilots from the Spanish Air Force, Aug. 13, at Morón Air Base, Spain. Five Spanish Eurofighter Typhoons and a KC-130J Hercules from SPMAGTF-CR-AF successfully conducted a refueling of the Spanish aircraft for the first time highlighting a mutual commitment to working together as allies. (U.S. Marine Corps photo by Staff Sgt. Vitaliy Rusavskiy/Released)