A U.S. Marine Corps F-35B Lightning II aircraft with

A U.S. Marine Corps F-35B Lightning II aircraft with Marine Fighter Attack Squadron (VMFA) 121 refuels using a KC-130J Hercules with Marine Aerial Refueler Transport Squadron (VMGR) 152 during aviation delivered ground refueling training at Marine Corps Air Station Iwakuni, Japan, April 11, 2017. The ADGR marked the first evolution of this form of refueling for VMFA-121’s F-35B Lightning II aircraft, and it increases the squadron’s ability to refuel by C-130 aircraft in austere locations when other resources may not be available. (U.S. Marine Corps photo by Lance Cpl. Joseph Abrego)