A KC-130J Hercules tanker with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa, trails a second KC-130J while conducting a formation flight near Moròn Air Base, Spain, March 25, 2015. The Hercules, largely used to transport assets and refuel additional aircraft, is utilized for crisis-response missions ranging from disaster relief and humanitarian aid to embassy evacuation and security operations. (U.S. Marine Corps photograph by 1st Lt. Danielle Dixon/Released)