MARINE CORPS AIR STATION YUMA, Ariz.—A Marine with Marine Fighter Attack Squadron (VMFA) 121 observes the F-35B lightning II take off aboard Marine Corps Air Station Yuma, Ariz., Jan. 9, 2017, as it transits the Pacific en route to Marine Corps Air Station Iwakuni, Japan. VMFA-121 is the first operational F-35B squadron assigned to the Fleet Marine Force, with its relocation to 1st Marine Aircraft Wing at Iwakuni. The F-35B was developed to replace the Marine Corps’ F/A-18 Hornet, AV-8B Harrier and EA- 6B Prowler. The Short Take-off Vertical Landing (STOVL) aircraft is a true force multiplier. The unique combination of stealth, cutting-edge radar and sensor technology, and electronic warfare systems bring all of the access and lethality capabilities of a fifth-generation fighter, a modern bomber, and an adverse-weather, all-threat environment air support platform. (U.S. Marine Corps photo by Lance Cpl. Jake McClung /Released)