Marines mount a 1,000-pound guided bomb onto an F-35B Lightning II aircraft on the flight deck of the amphibious assault ship USS Wasp in the Philippine Sea, March 24, 2018. The Marines are assigned to Marine Fighter Attack Squadron 121. This event marked the first time an F-35 has been loaded with live ordnance at sea during an operational deployment. Marine Corps photo by Lance Cpl. Amy Phan