160712-M-WK703-039 PACIFIC OCEAN (July 12, 2016) CH-53E Super Stallion crew chiefs perform preflight checks on their aircraft aboard the amphibious assault ship USS Makin Island (LHD 8) before a night-time mission during Amphibious Squadron – Marine Expeditionary Unit Integration (PMINT) July 17, 2016. During PMINT, Marine Medium Tiltrotor Squadron 163 (Reinforced), 11th MEU’s air combat element, performed flight operations in both day and night time environments to achieve qualifications their pilots need prior to deploying with the MEU later this year. (U.S. Marine Corps photo by Gunnery Sgt. Robert B. Brown Jr./Released)