A pair of HH-60 Pave Hawk helicopters receive fuel from an HC-130J Combat King II cargo aircraft during a training mission over Nellis Air Force Base, Nev., Feb. 22, 2018.The HC-130J conducts personnel recovery missions, provides a command and control platform, refuels helicopters and carries supplemental fuel for extending range or air refueling. Air Force photo by Senior Airman Kevin Tanenbaum